The older brother of Boston Marathon bomber Dzhokhar Tsarnaev changed from a roisterous boxer known for flashy outfits into someone with a bushy beard and drab clothes and obsessed by Islam, following a trip to Russia in 2012, witnesses said on Tuesday.
Defense lawyers will begin to present their case Monday that a jury should sentence convicted Boston Marathon bomber Dzokhar Tsarnaev to life in prison rather than death, as the trial enters a new and critical stage.
Tens of thousands of runners, including some of the world's best, and hundreds of thousands of fans are expected to hit the streets of Boston on Monday for the 119th running of the Boston Marathon.
Convicted Boston Marathon bomber Dzhokhar Tsarnaev is set to return to court on Tuesday for the next phase of his trial, when prosecutors will argue that he should be sentenced to death for his role in the deadly attack in 2013.
