Boston Marathon bomb suspect 'may blame brother'

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

The outlines of a possible defence came into focus this week when it was learned that Tsarnaev’s lawyers were trying to get access to investigative records implicating his now-dead brother in a grisly triple murder committed in 2011.