Hello waterbeefly
The thief is a man called Dorian.
He lives In a house in the poor area (at the north).
You will find a lot of meat in his house.
Then, you have to talk to Dorian to solve the Quest.

[Linked Image from squirrel.ovh]
duplouy.net badsquirrel.ovh
bad-squirrell.deviantart.com