Tsarnaev's attorneys trying to access to records implicating elder brother Tamerlan in unsolved triple killing in 2011
Associated Press, 23 Oct., 2013

Dzhokhar Tsarnaev's lawyers may try to save him from the death penalty in the Boston Marathon bombing by arguing he fell under the murderous influence of his older brother Tamerlan, legal experts say.

The outlines of a possible defense came into focus this week when it was learned that Tsarnaev's attorneys are trying to get access to investigative records implicating the now-dead brother in a grisly triple slaying committed in 2011.

In court papers Monday, federal prosecutors acknowledged publicly for the first time that a friend of Tamerlan Tsarnaev told investigators that Tamerlan participated in the unsolved killings of three men who were found in a Waltham apartment with their throats slit, marijuana sprinkled over their bodies [.....]