CSI: Cyber (2015–2016): Season 2, Episode 7 - Corrupted Memory - full transcript

WOMAN: How's work, honey? Things
getting better at the office?

YOUNG WOMAN (on screen): Mom, I don't want
to talk about that. I have news.

I think Ethan's going to propose.
No.

Really?

I know. About time, right?

About time for what?

For our daughter
to get engaged.

What? I don't believe it.

Hey, Ethan better beg
for my permission first.

Gil!
Dad!

So, what makes you
think it's gonna happen?



Did he, uh... did he
ask for your ring size?

No. Just your credit card number.
(Gil laughs)

Very funny, kiddo. Nice.

You know, if I'm right, it means

I can quit my job
out here in Tampa

and move back home to New York.

I really miss you...

Isabel?
(man yelling on screen, Isabel screaming)

Oh, my God, Gil, what is happening?!
(screaming continues)

Isabel?! Isabel?!
No, no, no, no, no, no!

No! Stop it! No!
Stop it! Stop it! No! Stop it! Stop it!

No! No! Izzy!
No!

No! (sobbing)
Is... No! No! Izzy! Izzy!

(sobbing)
GIL: Stop!



(distant boat horn blows)

(distant phone ringing,
indistinct conversations)

RYAN:
This is all I could find.

It's your turn, Tristan.

Just take your time.

Try to describe
exactly what you saw.

(sighs)

He... he-he killed Isabel.

He? You saw his face?

No. I, uh...

I don't know.
I don't think so.

But you know it was a male?

No, I...

I guess not. I...

I don't know why I said that.

Is it bright in here to you?

That better?

Yes. Thanks.
Okay.

Let's go back again,
to the beginning.

Tell me what
you do remember.

Let's start with where you were
when it happened.

(sighs)

I was, um,

in my apartment,
sitting at my desk.

I live across the courtyard.

And, um...

(sighs)

I'm sorry.
I don't know why...

I can't remember.

I am trying.
It's just a blur.

Okay, it's a blur.

Hey, just take your time.

There is one-one thing.

She was smiling.

Police officers said
they found you in the courtyard.

Sir? Sir, are you okay?

(whimpering, gasping)

I need ESU
at 1298 Horizon Court.

I saw him. He killed Isabel.

MALE (over radio):
Uh, 271. Roger that.

Do you remember saying that

to the police officer?

(engine revving)

(siren wails in distance,
indistinct radio communication)

I need to get in there!
Uh-uh. Uh-uh.

Processed only evidence that
couldn't wait for your arrival,

and left all electronic devices
for your team.

Heard police found a ski mask.
In a puddle.

Any trace of DNA would've been
compromised by the muddy water.

And we don't often tag team
with Cyber so quickly.

You guys usually come later.

So, what's so special
about this murder?

Tampa PD called us in to recover
artifacts from a video-chat.

Our best shot of identifying
our killer might exist

on the victim's computer.

Whole thing was
captured on WeDial.

(camera shutter clicking)

RUSSELL: Lacerations on
her face and neck.

Defensive wounds
on her arms.

Several stab wounds
to her chest and her back.

Bled out within minutes.

First responders said that
they found her posed like this,

with her hands on her thighs,
palms up, and they said

that her face was covered.

That indicates the killer felt remorse.
RUSSELL: Right.

Also suggests
that our victim knew her killer.

There's your computer.

Her name's Isabel.

Her parents are on a flight
here right now.

RAMIREZ:
Oh, I can't imagine

witnessing your own daughter's
murder on a video-chat.

Or at all, for that matter.

No. I can't, either.

Okay, so, evidently,
the killer

slammed the laptop
down by the lid

after he was finished
with Isabel.

Any chance
that he left any fingerprints?

MUNDO: Unfortunately,
it doesn't look like it.

All these swirl patterns
look the same.

Which means they
belong to our victim.

Okay.
Yeah, all right.

It's all yours, Raven.

Want me to open it for you?

No! Don't kid about that.

Why can't you open it?
RAMIREZ: I need

to recover a hibernation file.

MUNDO: Whenever you
close a computer

without shutting it down,
it goes into hibernation mode.

All the programs
and applications

that were running on it

are then written to the hard
drive in a hibernation file.

And it'll take longer to access

Isabel's video chat
if we were to open it.

RUSSELL:
All right, get to it.

That file could lead us
to the identity of our killer.

I'm downloading the file.

Nelson and Krumitz should
have it any minute now.

NELSON:
Ooh! Isabel Stanworth's computer

is infested with malware.

I mean, it's gonna take a while
to untangle all of this.

(phone buzzing) Not to mention
someone had remote access

to our victim's
laptop camera.

Krumitz, you see that?

What?

What are you doing?

Stopping the download.
I saw something.

What?!

That.

They-they... they wouldn't even
let us go in the apartment.

We haven't even
had a chance

to see her!
No, sir.

I-I, I know.

(sighs)

As soon as we're finished
here, a police officer's gonna

escort you to the medical
examiner's office.

Thank you, but
we have a ride.

Uh, Isabel's boss,
Neil, is a family friend.

She moved to Tampa
to work for his company.

Do you know who did
this to my daughter?

No, sir, we don't, but we're
gonna do everything in our power

to find out.

There's another witness?
Yes.

A Tristan Jenkins.

Neighbor or friend?

Oh.

You know him?

No.

Just nice to know she had
a friend out... outside of work.

Isabel just moved here.

I-I understand

this is very difficult, but

sir, I-I need both of you
to tell me everything you saw.

Okay.

Okay, um...

We were just...

We were just
talking to Isabel.

GIL: Did he ask
for your ring size?

No. Just your
credit card number.

(laughs) Very funny,
kiddo-- nice.

She was very happy.

She was...

(crying)

I'm so sorry.

GEORGIA: Uh, at first,

I didn't know what I was seeing.

Isabel?
I really miss you guys.

(screaming)

But then I realized

that her screams were real,

and that it was Isabel's blood
that splattered on the screen.

GEORGIA:
Isabel!

Isabel!
(grunting) Stop it! No!

Stop it!
No, no! Izzy! No!

Izzy!
(crying): No!

Stop!

I, uh... I saw a figure,

and he had a
knife in his hand.

(Isabel's screams echoing)

He stabbed her
several times.

I was going to stop it,
but he was wearing a mask.

Officers on the scene
found that ski mask

in the courtyard
of the building.

Isabel's killer
removed the mask.

Do you remember his face?

I think he turned away.

Close your eyes...

just for a second.

He was running down the stairs.

You were in the courtyard.

He was just ahead of you.

He pulled off his mask.
Now just focus on his face.

Look at his chin.

I want you to tell me
color of his...

No!

(panting)

I told you I don't re...
I don't remember.

I'm sorry. I wish I could
be more helpful than this.

I'm just wasting your time.

All right,
we'll take a break.

(sighs heavily)

Tristan, you are
our only eyewitness.

So, how's it
going in there?

I'm not sure.

Tristan Jenkins
definitely saw something.

He seems to be suffering

from post traumatic
stress disorder

and repressed memories.

A result of witnessing
Isabel's murder.

He claims he can't recall
details of the crime.

I'm not sure
he even remembers calling 911.

Do you think
he might be lying to you?

He's very fragile.

I'm not sure that it's all
related to this crime.

But there's nothing
in his behavior

or demeanor

that indicate to me
the he's fabricating his story.

But?

But there's

definitely something else
he is not telling us.

(Isabel screaming)

♪ CSI Cyber 2x07 ♪
Corrupted Memory
Original Air Date on November 15, 2015

♪ I know you've deceived me,
now here's a surprise ♪

♪ I know that you have, 'cause
there's magic in my eyes ♪

♪ I can see
for miles and miles ♪

♪ I can see for miles
and miles ♪

♪ I can see
for miles and miles ♪

♪ And miles... ♪

♪ Oh, yeah. ♪

== sync, corrected by elderman ==
@elder_man

I'm sorry. Explain again.

Why am I doing this?
I need you to overcome

your situation-specific amnesia

in order to remember
the killer's face.

But these are all men
in Isabel's life.

The way her body

was posed at the scene suggested

that the killer was someone
she knew.

So, look at each
of these photos

and tell me who these men are.

(sighs)

Ethan's her boyfriend.
They laughed a lot.

Neil's her boss.

He was like an older brother.

If anyone loves finance
more than Isabel, it's Neil.

He helped her adjust to Tampa.

Please, I-I don't want
to do this anymore.

She's your friend.

We need your help
to find Isabel's killer.

Tristan.

(sighs)

Zach's her cousin.

He was thrilled that
she moved closer to him,

but they didn't see
each other much.

Larry's the building super.

He fixes things for everybody.

I don't recognize any of
these people as the killer!

Please, I don't feel very well.

Okay, Tristan, hey...

breathe, breathe.

We just have to get
to what you saw.

Then all of this
will be over.

KRUMITZ:
I think I'm close, Nelson.

Just might have found the device
that put malware on Isabel's laptop.

(phone buzzing)
(sighs)

(exhales)

You gonna answer that?

Nope. Unknown callers,
blocked numbers,

anyone who
doesn't leave a message,

I do not pick up
and I do not call back.

Yeah, but that
person's persistent--

they really want
to talk to you.

That's the fourth call
this morning.

How do you even know those
four calls are the same person?

I can tell by the buzz.
Get out of here. (laughs)

Can you?
Yeah.

Same person, I'm telling you.
I have the ear.

And I have
the answer.

Look at this.

Got a serial number
from one of the devices

that put malware on
Isabel's computer.

Man, I am really pumping on
all cylinders today. (laughs)

Whoo! High five. Mm.

(phone buzzing)

Wow.

RAVEN: I'm searching
the last device now.

(tapping keys)

RAMIREZ: Hey, guys.

The serial number you found
doesn't match

any of the devices
in Isabel's apartment.

Something's put malware
on her computer.

Maybe someone slipped in
a thumb drive

while she was working
in a public place.

I checked the USB log--
that same device

has been plugged
into Isabel's computer

several times
over the past four months.

It's got to be
a device she owns.

(beeping)
Okay, okay...

Whoa, wait a minute.

Krummy, check this out.

I think I identified
what we're looking for.

No.
Oh, yeah.

Guys?
Oh, yeah.

(chuckling)

Guys, hello? What is it?
Um...

Raven, uh, I think
the device you're looking for

is probably in the bedroom.

Oh, my gosh.
Hey, yo, you should look

in her nightstand drawer,
all the way in the back.

Just look all the way
in the back. (laughs)

(electronic buzzing)
RAVEN: It's a sex toy.

MUNDO:
It's a sex toy in a Faraday bag.

That thing is connected
to the Internet?

You are looking at the device

that loaded malware
on Isabel's laptop.

Gives new meaning to the word
“sexually transmitted.”

Look, it's thirsty.

(laughter)
Stop it!

(woman moaning) FEMALE NARRATOR: There's
no greater pleasure on earth

than that of two people
becoming one.

But what if the Earth
literally comes between you

and your significant other?

Introducing Teledildonics.
(couple moaning)

Technology that allows couples
in long-distance relationships

to share all the sensations
of sex in real time,

no matter how many miles
separate them.

(Ryan laughs)

Okay, so what he
does in Dublin

she feels in
Duluth, I guess.

Talk about the
Internet of things.

I got a buddy who swears
this saved his marriage

while he was deployed.

A “buddy,” huh?
All right,

so Isabel and her boyfriend
Ethan used this toy

to continue
their sexual relationship

after she moved to Tampa
for work.

The sensations of sex
sent over the Internet.

We've come so far.

I'm sure Nelson can hook you up

with someone who would be happy
to give it a try.

I beg your pardon?

MUNDO:
All right,

NYPD just officially dismissed
Isabel's boyfriend,

Ethan Parker, as a suspect.

Looks like security footage confirmed
his story-- he was in a diner

on the upper West Side
at the time of the murder.

RAMIREZ: Guys,
check this out.

These Wi-Fi toys log a ton of
information during “partner plays”"

including the number
of devices linked.

Yeah, but there's three.

Ménage à trois?

Every time Isabel and her
boyfriend did the deed,

this third device
came online.

Location unknown.
Wait, so you're saying...

somebody hijacked
Isabel's wireless sex signal

and was... what, watching?

RAMIREZ:
Well, not exactly.

The third device
is another toy,

receiving all of the
outgoing data from Isabel,

and sent its own data
back to her toy...

allowing him remote
participation.

This is cyber rape...

that escalated.

At first,

this digital three-way aroused
our third party,

but eventually,
his appetite for contact

would have increased until
only real-world contact

would have satisfied him.

Isabel's rapist
might also be her killer.

RUSSELL: Hey, guys?
Trace that third device.

RUSSELL: Change of
subject here, but...

the blood in our
killer's mouth...

MUNDO: It's arterial spray
from our victim.

You could tell
by the directionality

of the blood on his mask.

Right, right, but nobody likes

that much blood in their mouth.

No, you're right--
he would have spit it out.

So somewhere at our crime scene,
our killer left his DNA.

Raven, looks like
you're on loogie duty.

♪ ♪

There it is.

♪ ♪

KRUMITZ:
Guy at the store said

our victim's sex toy of choice

is dishwasher-safe,
it syncs with any music library,

and has a “solo
session” mode.

Krummy, you know, man,

what is all of this stuff?
Oh, I...

well, I felt awkward carrying
the thing up to the counter,

so I bought
some decoy items.

Camouflage.

Buying a sex toy was awkward...

but the lingerie
was totally natural?

Well, now...
(awkward chuckle)

(computer beeps)
Uh... the sex toy

I bought also has malware on it.

NELSON: What?

I'm gonna send everything I got
over to that laptop.

Bring up the malware analysis
Raven did on Isabel's toy.

Okay, now,
this is weird.

The malware on the toy
you bought is identical

to the malware on Isabel's.
Isabel bought hers

in Tampa,
and I bought mine in DC.

Mm-hmm.

Supply-chain injection.

Black hats are always trying
to figure out new ways

to get their malware into the wild.
Okay, so what you're saying

is that our target compromised.
these devices where they were built.

Yep.
Okay.

Isabel's toy was infected
before she opened the box.

(phone ringing) I'm gonna send
the warehouse address to Elijah.

Go for Krummy.

Nelson, you got a
visitor downstairs.

Well, look at you.

Baby bro at the FBI.
(chuckles)

Why are you
here, Jordan?

All right, straight to it.
Uh, been trying

to call you all morning.

I thought you might pick up
if you didn't know it was me.

Yeah, well, life's
full of disappointment.

Look, I know
things aren't great

between us...

but we are family.

And I'm here because I need a favor.
Oh, okay,

so I guess we're only family
when you need a favor.

Look, Brody,
this is important.

Okay? I think the FBI's

investigating
one of my firm's clients.

Money laundering.

Okay, you want me
to do what, exactly?

I just need to know
if it's true.

So I can get out ahead of it.
Is that all you need?

I ain't seen you in two years,

and you just waltz in here
like we're close.

Do you remember the
last time we spoke?

The day of my arrest,
when I made bail,

and I caught that cab
down to your office?

And I begged you to represent
me in court, I begged you.

Do you remember
what you told me?

Yes, I...

“Can't help you, Brody.
You're on your own”.

And then you pointed
to the door, man.

(sighs)

Brody...

I'm sorry.

Okay?

Yes, I made a mistake.

But I need you now.

Hm.

This could be bad.

Brody, I am
your brother, okay?

I need your help on this one.

(sighs)
I can't help you, Jordan.

You're on your own.

RYAN:
I really appreciate your help.

It means a lot to me
and Isabel's family.

Georgia and Gil are here?
Yes, they are.

You can imagine
how upset they are.

But let's talk
about your best friend.

Tell me about Isabel.

We, uh... we had
a lot in common.

We liked the same Chinese
food, takeout Tuesday...

(chuckles)

Neither of us
had much family

in town, so weekends
were movie marathons.

Usually animated movies.

Sounds like you two
were very close.

She loved painting.

She introduced me to it.

You mentioned your family.

Mm-hmm.

My mom and dad
are still married.

My sister goes to Florida,
a junior. Uh,

my brother
just had a baby.

Grandma died a few years
ago, but Grandpa just...

won't give up the house.

He loved her so much.

He can't even
replace the glasses

Grandma bought him,
no matter

how many times they break.

He just uses masking tape
to hold them together. (laughs)

Gil and Georgia.

Isabel's parents.

Mm.

You refer to them
by their first name.

But they don't know you.

Of course they don't.

Why would Isabel talk
about me when...

she's in a long-distance
relationship with Ethan?

With all the time that
we spent together,

I mean, what would they think?

Just spoke to Elijah.

He arrested the perv
that intruded

into Isabel's sex device.

Thanks for running.

Guy's guilty of a whole lot
of hacking, not murder.

But there is a silver lining.
Elijah sent us

the sex toy source code.

NELSON: Oh, snap!

That allows us to eliminate
the sex toy intrusion.

Exactly.
I just sent it to you.

Okay, cool.

Wait, Krummy,
you seeing this?

That says someone else
hacked into Isabel's

video-chat program WeDial.

Yeah, but not on
Isabel's computer.

This black hat managed to hack
the whole WeDial network itself.

KRUMITZ:
Are you kidding me?

Our target
can intrude on anyone's

video chat around the world.

Nelson, we just uncovered
the most massive

digital invasion
of privacy ever.

So our black hat didn't
target Isabel specifically,

at least not at first.

He hacked the entire
WeDial network.

He bundled his malware

with a video chat
software update.

So any user who installed the
update was instantly violated

by the target and knew
absolutely nothing about it.

Any time they started
a video chat,

their conversations
were redirected

through the target's computer,

allowing him to eavesdrop.

All right, this is voyeurism.

I mean, not in
a classic sense.

But our target
is a cyber voyeur

who became
obsessed with Isabel

after watching
her on a computer

and realized he couldn't
have a relationship with Isabel

in the real world,
and ultimately killed her.

Right, but if he didn't...
if he didn't actually know her,

then why'd he pose her body?

Well, because,
after so many hours

of spying on her
video chats,

our target felt
like he knew her.

And it doesn't seem like
a coincidence that she was

exploited by two completely
unconnected hackers--

sex toy sicko

and our-our WeDial voyeur?

No.

Isabel was a
high-risk victim.

Think about it. Here's this
attractive young woman,

living in a new town,
missing her family back home.

Her virtual sex play
was an attempt

to fill an emotional void

that was created by
geographic separation.

Internet-enabled intimacy.

Well, this very specific type

of online risk-taking

attracts a very specific type

of deviant sexual predator.

Think I know how to find
our killer's computer.

Good. Because I can't find
any of his digital dust

in the WeDial network.

Well, that's the beauty of this.

We don't need to find it.
We're gonna be led right there.

I infected this laptop
with the WeDial malware, so...

all we need to do
is start a video chat

and our conversation
will be immediately intercepted

by the target's machine.

We'll get his IP address.

Mad props, Krummy.

Well, I have my moments.

Okay. I'm starting a video chat
between you and Raven.

All right.
Say hi and then mute your side.

We can't have the target listening in.
All right.

Raven knows she's
got to do all the yakking.

KRUMITZ:
All right, we're in.

Our target's computer
is now watching our live chat.

Hey, Raven, how you doing?

KRUMITZ: Okay, our target's computer
is intercepting our video feed.

Got him. He's in Chicago.

Wait, wait, wait.

IP's in Singapore...

Now it's in the
Ukraine... Malaysia...

They're decoys.

He's rolling his IP address.

We're never gonna
find our target this way.

(phone buzzing)

(phone buzzing)

(Krumitz groans)

I can see our target's
computer online.

But because of the rolling IP,
it means

I can never find
the physical address.

Yeah, but somewhere in the world
that computer does exist.

Solid chance it's
hooked up to Wi-Fi.

Nelson, why do I feel like
you're about to be brilliant?

Only because I am.

Yesterday, we infected ourselves
with the target's malware,

which means our video chats
pass through his computer.

We can communicate with
the computer we can't find.

So even though

I can't locate his computer,

we can still send his computer
an executable.

Uh-huh.

A Wi-Fi sniffing program
hidden in a video chat.

Hey, Krumitz, you there?
KRUMITZ: It'll sniff out and locate

all the other Wi-Fi signals
in the area that aren't hidden.

We'll identify enough
nearby Wi-Fi networks,

cross-reference their locations

and finally find
the unfindable computer.

Nelson, I could kiss you right now.
No, no.

Come on.

No. Keep your lips to
yourself, Casanova, okay?

Matter of fact, I'll
ping the target computer

and meet you back at CTOC.

(grunts)

All right, listen up, minions.

Every time we detect a Wi-Fi
network with a recognizable name

that our target computer
has connected with,

I'll call it out.
You flag

the physical location
and that should get us to our

target's computer.

WOMAN: Okay, got it.
MAN: All right.

All right,
we got Dora's Coffee Shop

and Tamale Zone.

Locate all areas where these

two establishments
are near each other.

Sammy's Dry Cleaners

and Irving Grille, okay?
Narrow it down, people.

This should be
getting us closer.

How many Wi-Fi
networks we got?

Uh, four.
No, wait-- five.

MAN: Fort Lauderdale...

NELSON: Got another one.

Not a business.

This one's called Izzy's Crib.

Wait, what?
Izzy's Crib is the name

of Isabel Stanworth's
home network.

“Izzy” as in Isabel,
but-but that would mean

the target and Isabel
are neighbors.

Krummy, they are.

The MAC addresses match.

Our target
uses the same

Internet provider as Isabel.
Okay,

I'll use
the Wi-Fi networks'

signal strength to triangulate

the exact location

of the target's computer
in Isabel's neighborhood.

Our target is Tristan Jenkins.

Tristan.

I want to play you something.

TRISTAN: You have to help her.
Please, please!

(phone buzzes)

Someone has to help her.
He's stabbing her!

He's k... he's killing her!

Please, help! Please!

Turn it off, now!

We are gonna push through this.
Right now.

He was attacking her.
You rushed to help.

He was exiting the apartment,

he pulled the mask off.

Who was he?

Who killed Isabel?

(phone line ringing)
Damn it, Avery, pick up.

I can't get D.B.
on his cell.

(phone buzzing)

I shouldn't
have come here.

I shouldn't have come here.

I'm no help at all.
This was a mistake.

This was a mistake!

I need to use the restroom.

(line ringing)
Come on, Raven, pick up.

(phone buzzing)

Krumitz, why do you
keep blowing up...

Raven, Raven,
stop talking, just listen.

Avery, Tristan Jenkins is the target.
What?

He was behind
the WeDial intrusion.

He wouldn't say who was under
the mask because it was him.

Come on.

FBI!

Clear.

FBI!

Clear!
Clear!

This is
Special Agent Avery Ryan.

We have a suspect fleeing.

Tristan Jenkins, five-foot-ten,
Caucasian, brown hair.

I need him detained.

Tristan Jenkins, five-foot-ten,
Caucasian, brown hair.

(siren wails, tires screech)

MAN (over radio):
Car 1, go, go!

FBI!

Tristan Jenkins, FBI!
Go right!

Tristan Jenkins!

All clear!

Federal agents!

(indistinct radio
communications)

It's all clear.

(indistinct radio chatter)

Isabel's apartment.

Everything
Tristan told me

about his friendship
with Isabel

he learned by eavesdropping
on her WeDial video chat.

The painting,
the Chinese dinner...

all that happened

while she was video chatting
with someone else.

ISABEL: Maybe I'll fly home and visit
over the long weekend.

It would be nice to spend
a night in my old room.

TRISTAN:
We liked the same Chinese food.

Takeout Tuesday.

So weekends were
movie marathons--

usually animated movies.

...skip the games
and ask her out already.

Can't get the color
of the ocean right.

You'll look at the ocean...

TRISTAN:
She loved painting.

She introduced me to it.

...painting and you realize
it's actually a million...

This is like a Cyber version
of that movie Rear Window.

But, so,
they never actually met?

The way he's profiling, no,
not in the real world.

Tristan's PTSD masked

more serious behavior:

Technology Facilitative
Social Isolation.

He basically

lived his whole life
in this apartment.

That explains all the eggs we
found in the refrigerator.

Probably wasn't getting enough
Vitamin D from the sun.

Sounds like agoraphobia.

No. Agoraphobia is
an anxiety disorder--

a fear of being
in a situation

where you feel helpless
or trapped.

Tristan's isolation
was not born of fear,

but of dependence.

Technology provided him
with everything that he needed.

He became addicted to
experiencing the world online

and over time, the only time
he felt safe or comfortable

was behind a computer screen.

I bet the first time
he saw Isabel

was when she moved into
this apartment building.

He used his WeDial exploit
to find her

and then
eavesdrop on her.

What drove him to murder?

Primal urge.

As his obsession grew,

he overcame
his self-imposed isolation.

So he forced himself
out his door,

into her apartment,

carved her up while she
video-chatted with her parents.

It's looking that way.

And if so,
Tristan didn't collapse

because he witnessed a murder.

He was overwhelmed
by sensory overload

when he committed murder
and left this apartment.

(phone chimes)

All right,
text from Russell.

“Our killer's saliva is not

in any law enforcement
database.”

Well, that
makes sense.

If he hasn't left
this place in years,

he hasn't had the opportunity
to commit a previous crime.

Can you grab

one of Tristan Jenkins'
toothbrushes

and get it to D.B. Russell
in the field office?

Look, a simple DNA test

should tell us
if Tristan's our killer.

Yeah, but with
ten monitors?

I mean, he's probably
watching more than just Isabel.

We gotta find this guy quickly
and put some cuffs on him.

KRUMITZ:
Just heard from Raven.

She's downloading
Tristan's computer.

Hey, man...

You cool?
Yeah.

You didn't eat the trout
in the commissary, did you?

No.

Um... let me ask you
a question.

If you were given
opportunity

to help Francine before
she got in trouble,

would you have?

I'd have done
anything to help her.

Anything.

Yeah.

All right.

RAMIREZ:
Avery?

I think I got something here.

Okay, I've been going
through Tristan's computer.

I found online orders, message
board posts, nothing special,

but then I found this.

Are we live?
No. These are recordings.

Eight terabytes worth,
over 100 hours of video.

I'm thinking Tristan

captured every WeDial session
that came through his machine.

Wait a second.

There's laughter,
a birthday, a grandfather.

These are all
happy moments.

So, Tristan's doing what?

Collecting happy moments
from his victims' lives?

TRISTAN: My mom and dad are
still married.

My sister goes to Florida.
She's a junior.

Oh, my brother just had a baby.

Grandma died a few years ago,
but he loved her so much.

He can't even replace
the glasses Grandma bought him,

no matter
how many times they break.

There's a generational mix.

These people aren't his victims.

They're his family.

That's why I didn't read
that Tristan was lying.

Tristan so fully
believes his delusion

that he thinks
he's telling the truth.

RAMIREZ: Tristan thinks
this collection

of random strangers
are his loved ones?

To him,
they aren't random strangers.

They are his family.
(phone buzzes)

Russell.

Okay, Avery,

I just got the DNA results back
from Tristan's toothbrush.

It's not a match
to the saliva samples

we got from the crime scene.

He's not Isabel's killer.

All right, so Tristan did not
brave the outside world

to kill Isabel.

But he knew that she
was being murdered,

because he was eavesdropping
on her WeDial session.

He saw exactly what
her parents saw.

ISABEL: My job out here...
RYAN: He did everything

he could to get her help
without leaving his apartment.

(dialing phone)
MAN: 911. Please state your emergency.

He's stabbing her!
Please, help! Help!

And then when he realized
the police were not gonna

get there in time, he did
the only thing he could.

He overcame his fears
and stepped outside to help.

But if Tristan's innocent, then,
you know, why'd he run?

RYAN: You know,
the last time we spoke,

I think he might have
recalled the killer's face.

And now he's out for revenge.

I've made up my mind.

He won't stop,
so I have to stop him.

I tried to excuse it,
telling myself

he was just
overly affectionate,

but it's sexual assault.

I threatened to tell my father,
but he wouldn't stop.

So I told him
I'm going to the police.

RAMIREZ: I found this video
journal entry on Isabel's computer.

She deleted it, and
it took some time to recover.

There are no other videos
like this.

She doesn't identify
who she's talking about,

or where the assault
took place.

Why would she record it
and then delete it?

Shame.

Changed her mind.

But Isabel had already
threatened to go to the police.

This was motive.

The “he” that she talks about...
was scared.

Whoever this person is,
is her killer.

(murderer grunting,
Isabel screaming)

(grunting
and screaming continue)

Recovered this from
Tristan Jenkins' hard drive.

I had to dig through

hours of footage.

This is what Isabel's mother
and father witnessed.

KRUMITZ:
Unfortunately, this video

doesn't actually
help us I.D. our killer.

Okay, all right, uh,
Nelson, go back a few seconds,

please.

(video rewinding)

I really miss you guys.
RUSSELL: Right there.

Isolate that bracelet
and highlight the engraving.

It's the infinity symbol.

What are you thinking?

I'm thinking that we can run

a facial recognition
without a face.

You guys know about ABBI?
Stands for Automated

Body and Belongings
Identification, right?

So we all have articles
of clothing we wear

so often, they become
unique identifiers,

like our murderer's bracelet.

Well, this is great,
but there's no

random-stuff-we-own
database to search.

You know, actually there is,

and that index
happens to be public

and linked directly
to people's names.

What is it?

350 million samples
submitted every single day

by the users themselves.

FriendAgenda!
Pow!

Okay, crop out the unique
characteristics of our killer.

All right,
then we write a script

to crawl
all FriendAgenda photos.

And if Isabel's murderer

is like the rest
of the world, he will

have posted at least one photo
that will lead us to him.

52 matches in the Tampa area.

How many of them are friends
with Isabel Stanworth?

Zilch.

NELSON:
Zero?

The entire time I've worked
here, I've never had

a zero match.
Okay, okay, okay, well...

(phone buzzing)
Wait a minute.

RUSSELL: Here we go.

All right, so,

social media sites like
FriendAgenda-- they-they link

profiles of relatives
like a family tree, right?

KRUMITZ: Uh, yes, yeah.

Stay-stay with me.
Yeah, yeah.

Okay, when I analyzed
the saliva samples

that Raven collected
from the scene,

the DNA gave me, what?

Age, hair color, eye color,
all of that stuff, but it also

gave me evidence of an
inheritable genetic disease.

Where is it? Right here.

Okay, so, our killer
has a 50% chance

of inheriting
Marfan Syndrome.

Okay, well, let's see
if any of our 52 results

have a parent that belongs to a
support group on FriendAgenda.

Right.

KRUMITZ:
Got two hits.

Bringing up
the profile now.

The one on the right's
our murderer.

Okay.

What now?

You could have given me
the heads up, man.

What are you talking about?

Talking about the FBI.

They're raiding my firm
right now.

They won't even let us back
in the building.

You knew that
this was gonna happen, Brody,

and you did nothing about it.

But I guess blood and family
doesn't mean much

of anything to you now?!

Look, that is not true, Jordan.

We're blood, but it wasn't me
that decided we weren't family.

(phone beeps off)

(siren blaring)

GEORGIA:
You're sure this is everything?

I think so.

But if I find anything
else Isabel had here,

I'll mail it to you.

She was my friend.

Get out!

GEORGIA:
Oh, my God!

Ple-Please...
please don't hurt us.

Gil, Georgia,
I didn't know you'd be here.

Do... do we know you?

No, no, no, I'm not...
I'm not gonna hurt you.

I'm just here for him.

He killed her.
What? What are you talking about?

I remember.
I finally remember it.

I saw your face when
you took off the ski mask!

Neil, what the hell's he talking about?
I don't know.

She was my friend,
and you took her from me.

You killed my Isabel.

No.

Is this true, Neil?

GIL: Look at me.
GEORGIA: Oh, God.

Look at me, Neil.
Oh, God, Gil.

GIL:
Look at me!

Elevator's not working.

Tristan must have
shut them down.

He chained the stairwell, too,
locked us out.

There should be
an emergency ladder

inside the elevator shaft.

It's not opening.
Get the hydraulic spreader.

I can try to hack the elevator,
get in electronically.

No, we don't have time for that.

We're gonna get to Tristan
the same way

he got to Isabel--
over the Internet.

Please, you don't want
to do this.

Yes, I do.

You deserve to die
for what you did.

You took her from me.

RYAN:
Tristan, listen to me.

Isabel would not
want this for you.

Shut up!

You don't know
what she would have wanted!

You didn't know her like I did!

No one did.

RYAN:
No, you're right.

Nobody knew her like you did.

She shared all her secrets
with you.

But what about the rest
of your family?

Your grandpa.

Your brother
with the new baby.

Your sister in college.

Tristan, if you do this,

you will lose them all forever.

Put the gun down, Tristan.

Put it down and keep living
for your family.

That is what Isabel would want.

(crying)

MUNDO: Tristan Jenkins,
hands in the air!

Hands in the air,
on the ground now!

Get on the ground!

You stay right there.

(Tristan whimpers, sobs)

GEORGIA: Gil! Gil!
(sobbing): Oh, my God.

MUNDO: Drop it.
RYAN: What's happening?

(crying):
Oh, my God! Gil!

(Georgia sobbing deeply,
sobs echoing)

MUNDO (echoing):
Take him away.

(echoing): EMT, Tampa
Capital, top floor.

(indistinct radio transmission)

Wait...

Tristan.

I didn't know
Gil was gonna be here.

I was supposed to kill Neil.

Me, not him.

She's gone.

She's gone,
and I can never have her back.

Tristan...

I don't even know
if you can understand this,

but you are gonna be brought up
on charges, too.

(siren whoops in distance)

Isabel would have liked you.

== sync, corrected by elderman ==
@elder_man