- It is heartless.

I thought we agreed you'd wait outside.

- If you want my help, Dr.

Doyle, it'll be as a full member of this enterprise or not at all.

Besides as a journalist, I can enlighten you on things you've never learned otherwise.

Firstly, the population density of the Cotswolds is 25 sos per acre in the west end it's 50.

What number would you imagine for white chapel doctor?

400.

500 more?

- I have no idea.

- Over 800.

Over 800 people per acre.

- And how is this pertinent?

It it makes the killer's ability to move about undetected all the more remarkable and explains why he prefers street walkers as victims.

- Exactly.

He uses their knowledge of white chapel against them.

- Please stay.

Ms.

Harkness, you were just starting.

- I've never attended a postmortem before.

What do you expect to find?

- Well I find the German term autopsy quite apt.

It means to see for oneself.

- I trust you.

Don't mind my recording this for a future article.

Professor, if we should stop this madman.

The world deserves to learn the truth.

- Constable Watkins on the body of Mrs.

Eros in Mi square at 1 44 in the morning.

He swears he'd seen nothing there 15 minutes before, which is about the time we were examining Elizabeth Stride's body in Dutch field's yard.

- Always one step behind - So far, but the more we know about him, the more we can predict his next move.

- I already know his next move Professor.

He will kill again and again and again until he is caught or killed himself.

- Was this unfortunate woman an acquaintance of yours - Unfortunate disgust, disguised as pity?

No Doctor, I did not know her, but I have known many like her.

- Ms.

Hne understand you were a nurse before becoming a journalist.

What can you tell me about the liquid?

Really professor, that's that's hardly a fair question - To ask a woman.

- I didn't mean to imply - No you didn't.

You were quite clear.

He did it in one go all the way to her spine.

- Quite so.

In suicides we might see incisions of varying depth on the wrist, which we would call hesitation marks exactly.

A killers act decisively as shown by the ferocity of the incision and the short time he had to act however the incision is straight.

Assuming he came from behind, the struggle or collapse would cause the blade to wonder.

- He kills quickly but silently so he has to strike from behind.

If Catherine Edo saw the blade, she would've screamed.

- A woman matching her description was seen.

Arguing with a man wearing a red card chief shortly before the body was found.

Doyle, what would you expect to see in cases of manual strangulation?

The highway bone will be fractured.

Professor, how's this pristine?

But in cases of Otting with a soft material, say a scar or a red kerchief, - The bone would be intact - Precisely if it OTTs them until they collapse.

The neck is supported by the ground and - He could put his full weight into the killing stroke.

- What else can you tell me about the incision?

I believe observation door.

Remember what I torture acts first analysis after the end of the incision is shallower on the right and it is the left.

The starting point is usually shallower, meaning the victim's throat was cut from her right to her left.

- The killer is left-handed - Most likely and at least as tall as the victims obviously couldn't easily garot them.

That still leaves a lot of possible suspects.

True, but we've just eliminated 95% of London's population.

The police surgeon wanted the amputated ears fell from the wagon.

When the body was removed, just like the letters in the paper, the one signed Jack the ripper.

He said he'd nicked the next victim's ears.

This proves a killer wrote it.

- It proves he read it.

The letter was clearly a hoax.

- Clearly - The letter was sent to the central News Agency.

He familiar with that institution?

They do not print anything themselves.

Rather they sell their reports to others.

Only a journalist would know they exist or how to contact them.

- Making the most likely author The porter for the agency know the killer has acted on this false message.

The right will doubtless compose more flights of fancy leading the police even further astray, fully heaped upon misery malt.

The uterus has been removed without nicking the bladder in a dark public space.

In under 15 minutes - A surgeon perhaps, possibly or a butcher or a hunter.

- Her right kidney has gone too with Annie Chapman.

Nicola to the uterus.

And this is new.

- Perhaps he's using their bodies to learn anatomy.

- Is there anything else from the police surgeon's notes?

Professor, there's no evidence of recent sexual intercourse.

The intestines were d draped around the body.

Presumably the effect it would have on whoever discovered her - Killing her wasn't enough.

He had to degrade her as well.

- Quite so a demonstration of his power.

So Doyle, what can you tell me about the liver?

The capsule is rough and nodular consistent with the cirrhosis of alcohol abuse.

She was close to death anyway and perhaps ale houses are as guilty as - Are you saying she deserved to die because she was an alcoholic.

She drank to dull the pain of her existence.

Catherine EDOs was not a street walker.

So men have to find some other reason to blame her.

For her.

- I wasn't trying to suggest - That she deserved this.

Do you know why prostitutes call the sex act of four panini?

Trembler a bed in a rooming house costs four pens.

So a woman with nothing else sells herself to sleep safely.

For one night this - Harkness - Sleeps.

This isn't one of your shilling shockers, Dr.

Doyle.

These women are real flesh and blunt.

Why aren't the papers talking about her as if you were a person?

Not just another unfortunate.

You know why you asked earlier?

If I knew her, I am her.

So stop calling them.

Unfortunate as if that excuses their murder.

It wasn't their fault.

Perhaps this was a bad idea.

- There is an ancient Chinese manual for the examination of those who die unnaturally the washing away of Wrs.

The Chinese believe that evil thrives in the dark and that it must be exposed before it can be banished.

I can think of no one better suited than we three to bring this creature outta the shadows.

- The world is watching white chapel.

If we fail to stop him, the blood of the next butchered woman will stay in our hands forever.

He'll be watching us too.

- We've been seen accompanying Inspector Aline to the murder scene.

I expect the killer is in the crowd savoring the fear he's created.

He's watching us already.

- This monster walks amongst us, a leviathan lurking in the shadows - Upon the earth.

There is not his like who is made without fear.

The book of job.

Yes, he's steam.

With iron as straw and brass as rotten would perhaps together we can succeed where others have failed.

- If it falls upon us to stop this creature, let's cast the devil back to hell.