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6 people shared a building in London - Lisa the teacher, Caroline the maid, Alice the businesswoman, Thomas the London Underground driver, Derek the coffee-shop owner, and Michael the prison guard.

One day, they moved to New York, retaining their original jobs.

They very much enjoyed the new scenery, as well as all the sights. They had lived in near bliss in their new home for about 3 weeks.

However, one Sunday, Derek was killed! The police rushed over when Lisa found the body after coming home.

The coroner put the time of death around 10 am, the murder weapon being a gun, sealed in a safe for protection. Only the roommates knew the code.

The police took statements from each of the roommates.

Lisa said she was teaching a class.
Caroline said she was getting the mail.
Alice said she was in a meeting.
Thomas said he was running the Victoria line.
Michael said he was called to the prison for a routine checkup.

Immediately they arrested Caroline, since there is no mail on Sundays.

But soon after, they found out there WAS mail today - a package had arrived for Sunday delivery.

So if Caroline didn't kill Derek, then who did?

NOTE: Derek didn't commit suicide.

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up vote 11 down vote accepted

I think it was

Thomas

Because

The Victoria Line isn't in NY

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1  
It is curious that he would somehow keep his job, as a driver, for 3 weeks while living 3,459 miles away. Unless, of course, they moved to Lincolnshire (Still 130m away). – Khale_Kitha Mar 25 at 16:30
6  
He's just got really long arms. – Raystafarian Mar 25 at 16:41
2  
There are three New Yorks in England, didn't know that! – Narmer Mar 25 at 16:45
2  
@Narmer hm, didn't think of that. Wouldn't the bobbies show up instead of the police? Plus - they have a gun. – Raystafarian Mar 25 at 16:47
6  
Ah, so here's what really happened, then: Gubznf, orvat hanoyr gb cresbez uvf wbo qhr gb qvfgnapr, fgnegrq gb unir zbarl vffhrf. Ur tbg va, onq, jvgu n ybna funex. Uvf ebbzzngrf, orvat boyvivbhf gb gur snpg gung ur pbhyqa'g jbex fb sne njnl, qvqa'g abgvpr. Ur orpnzr qrcerffrq naq wbvarq n perj, eboovat onaxf. Bar qnl, gurl eboorq n onax npebff sebz Qrerx'f pbssrr fubc naq ur jvgarffrq vg. Gubznf'f perj pbreprq uvz vagb xvyyvat Qrerx gb cerirag uvz sebz grfgvslvat – Khale_Kitha Mar 25 at 17:12

Michael

must also have been lying.

I'm pretty sure you need a US background check to work as a prison guard in New York, which takes more than 3 weeks.

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The background check could have started before they moved. – jwodder Mar 25 at 19:52

I think it's

Lisa

because you do not usually teach a class on a Sunday.

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1  
Maybe it was sunday school – Raystafarian Mar 25 at 22:52

I believe it is

Alice because normal business people don't work on Sunday

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Even in a city such as NY? – cst1992 Apr 21 at 13:52

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