Question: Who hired Barry Cohen to represent a Chechen American mixed martial artist?
Sentence (from "Ibragim Todashev"): Ibragim Todashev ("Ибрагим Тодашев"; September 22, 1985 – May 22, 2013) was a Chechen American former mixed martial artist and friend of suspected Boston Marathon bomber and former amateur boxer, Tamerlan Tsarnaev.
Relevant evidence: Yes