NYT: Tamerlan withdrawn when boxing career ended

Updated:

(MyFoxBoston.com) – We still don't know when the Tsarnaev brothers were radicalized. The New York Times is reporting it may have happened shortly after Tamerlan's boxing career ended.

Tsarnaev wanted to be a U.S. Olympic boxer, but the paper says that ended in 2010 when amateur boxing rules changed, forcing him out of tournaments because he wasn't an American citizen.

Sources tell the Times that is when Tamerlan became less social and more withdrawn.

Tamerlan's body remains unclaimed. His parents are in Russia and his widow hasn't come forward yet. The medical examiner has determined how Tamerlan died, but says the information won't be made public until a death certificate is filed and that will happen when someone claims his body.