Whitechapel

Oh, my God!

The man in CCTV may have murdered everyone you worked with.

Don't you want to help? I don't know any cripples.

Doors and windows were all locked. No forced entry.

This was not a raid or a robbery.

Everyone's saying the killer isn't human.

He was cheated out of a lot of money by his brother.

Salter has motive, he's made threats to kill and we

can place him in the area at the time of the murders.

How's Judy? She thinks it's cancer.

He was there at ten and when I went to check

him just now, he was gone. From a locked cell?

Nobody disappears into thin air.

We'll search the whole of London if we have to, but we'll find him.

Marcus Salter, 39, six foot, slim build,

dark clothing, runs with a limp.

This man is believed to be highly dangerous.

Do not approach him.

Murder!

Bloody hell. Murder!

Murder!

Call Llewellyn. Get SOCO here now.

It's DS Miles. We have an incident.

In 1811, the coroner said that 'The late and present murders

are a disgrace to the country

and almost a reproach on civilisation.'

'While the exertions of the police, with the

ordinary power of the parochial officers,

are found insufficient to protect men's persons from the hand of violence.'

'And the coroner has to record the most atrocious crimes,

without the possibility of delivering the

perpetrators to justice and punishment.'

'Our houses are no longer our castles.'

'And we are unsafe in our beds.'

My name is Tom Knight.

I'm a student and I rent a room at the Emerys' house.

Just after midnight, last night,

the lights went out.

Then there was a big crash.

So I ran onto the landing and saw Bill.

Lying at the bottom of the stairs.

There was a man standing over him.

With a hammer in his hand.

The man turned around, so I ran back into my room.

I didn't want to see his face, because then he'd see me.

I shut my door, I pushed my wardrobe in front of it

and I used my sheets to climb out of the window.

But then I just ran. I didn't even notice

I was naked until the police found me.

Did you hear the killer come into the house?

Did anyone knock at the door?

No-one knocked at the door

and everything was locked up tight.

One minute they were laughing at the TV,

the next they were being murdered.

The killer just appeared out of thin air.

'Widen the search for Marcus Salter.'

I want every available uniform and PCSO out looking for him.

Yeah.

Thank you.

So, the two women, Jan and Abby Emery, were

watching television when they were killed.

A massive blow to the head.

No struggle. No contact.

Once again, it was quick and impersonal.

Don't expect a forensic breakthrough here.

Just like the Salter murders.

And, again, we have one survivor.

Lola, a teenage girl. She was out for the night.

Bill Emery was upstairs.

Hearing the screams, he ran to help.

He fell down the stairs, breaking his right leg.

The killer caved his skull in.

The killer has left us his footprints in Jan and Abby's blood.

He killed them first, then ambushed Bill at the bottom of the stairs.

But he didn't go upstairs? No.

No trace of him on the treads nor anywhere upstairs.

So Tom Knight is upstairs, sees him and the killer doesn't go up?

Yeah. Scared him off?

The prints stop here. They don't go anywhere.

Where did he go? It's like he just vanished.

Look at the prints.

Look at how the left foot leaves a clear print,

but the right is smeared as he runs.

He has a pronounced limp.

Like Marcus Salter.

That's very useful. Thank you, Miss Pepper.

Lizzie.

Lizzie.

Sorry.

Excuse me.

Still no sign of him? If he can escape

from a locked cell, he could be anywhere.

I don't believe in magic, Sean, and I don't believe in monsters, either.

What are you talking about, sir?

There is only one way Marcus Salter could have escaped from his cell.

You turned out the lights and unlocked the door for him.

It's too dark for the CCTV, so no-one sees you.

We didn't have to see you to know it had to be you ... you've got the keys.

So?

Why would you let him go?

He... spoke to me.

He spoke about my family. Wouldn't stop, he just

kept talking and talking, getting inside my brain.

And what did he say?

At Hendon, they train you to cope with threats and violence,

but nothing prepared me for last night.

I had to let him out. What do you mean, you had to let him out?

Three more people are dead! Why? Why would you do that?

I knew I shouldn't have done it.

I didn't want to do it, but I didn't have a choice.

You can't argue with the devil.

Go home. You're suspended.

See you in a bit.

Sssh. The doctor said she'd given you something

to make you feel a bit better. OK, Lola?

Nothing's going to make me feel better.

My mum's dead, my gran and grandad.

I know, darling, and I'm so sorry.

Who's going to look after me now?

You've got lots of family. Don't worry. You'll be taken care of.

But not like before. They're not gonna

make me chocolate when I wake up at night.

They're not gonna rub my feet when I watch telly.

What if they won't drive me to school? I can't walk, can I? I've got bad knees.

This is a terrible place.

I told them I can't drink plain water and I'll get sick if I get dehydrated.

And the food here is disgusting. I'll get ill if I eat this crap.

Lola? Lola?

Do you know this man?

Marcus? Yeah. Freak.

Why is that?

Marcus Salter knew Bill Emery. Drank together till

they had a falling-out over non-payment of a bet.

A whole family dead, for what, 20 quid?

Money is definitely the motive.

First, with his brother and now with Bill Emery.

Where is he?

Salter hasn't been home, hasn't seen any of his family.

Hasn't been near his work, hasn't been seen by anyone who knows him.

Everyone in Whitechapel is looking for him. Nothing.

He's vanished.

If he's not hidden away, then he's hiding in plain sight.

He can't be, he hates the daylight.

Where do you go to be in the dark in the daytime,

where everyone can see you, but no-one can see you?

..the key to this whole thing's the dynamite...

Perv!

Stop! Stop, police!

He tried to run, so they're holding him there. Who are?

Kent.

And the people from the cinema. The bloody public? Fantastic!

Word's got out, then.

Yeah, all right. Calm down, please.

Police officers. Let us in. Thank you.

All right. Thank you very much. We've got him.

Couldn't you do this on your own?

I'm sorry. I forgot my crucifix and holy water.

I'll get Mansell to meet us round the back. Take him to the cinema.

Get away from these people.

Get your car round the back of the cinema sharpish.

There he is!

Hurry, Kent. Get us out of here. Get us out of here.

Die! Die!

Marcus Salter has been charged and is remanded into custody.

With all the lights on.

Good.

Well, now you've got a bit of free time...

What's this?

Remember that SOCO, Lizzie Pepper? That's her number.

Why? What... What? You can't... She likes you and she's single.

You asked her? Well, you weren't going to. No.

Well, just have a drink.

Give her a ring. You might have lots in common.

I know you're trying to be nice, but, really,

this is way beyond your remit as sergeant.

Erm... I can manage my own life.

Don't lose that number.

I worked hard for that.

Who has been using my milk?

No-one touches your milk. It's soya and it's blue.

I dye it blue, but it makes no difference,

because someone is still stealing it.

It's just milk, Lara.

You're all thieving bastards!

Next time, I'm putting rat poison in it!

You look happy. Movie night tonight.

Poor woman. Night-night.

Meg, listen, I've booked my Judy a bit of a spa day.

She won't want to go on her own and I know

you enjoyed your weekend away together.

Take That in Dublin. It was fantastic.

Would you mind going with her?

Chocolate body wraps? Bloody hell, yeah, I'd love to.

Thanks. She needs something to take her mind off the scan. What about you?

Have a good evening.

Are you doing anything tonight?

Joe, this is Charlie Cross, author of Jack The Ripper: The Last Word.

Pleased to meet you.

And this is George Collier, author of Jack The Ripper: His True Identity.