Board Thread:Skyrim/@comment-110.146.134.32-20130814063646/@comment-121.216.171.228-20140814101313

The quest is clearly intended to be somewhat open-ended.

I'm going to have to rule out Vasha just based on his honest dialogue about having many people after him.

Alea "may" be lying about having children to save her life, but otherwise gives no other indication of a contract.

However, Fultheim clearly gave me the impression that he himself killed the children he talks about, and the dialogue option to persuade him seems to indicate he's guilty.

Astrid's line of "Interesting choice" for choosing to kill him is also a dead give away that he had the contract.