US investigators are interested in a trip that Tamerlan Tsarnaev, the older brother suspected in the Boston bombing, took to the North Caucasus region of Russia in 2012. They want to know whether he had contact with foreign extremist groups.
Dzhokhar Tsarnaev, Boston Marathon bombing suspect, was charged Monday with using an IED to destroy lives and property, a federal crime that carries a potential death sentence. The affidavit outlines why the FBI believes it has the right man.
Just days after the Boston Marathon bombing, the political maneuvering and blaming have begun. Some lawmakers fault the FBI for not following up on intelligence about one of the alleged bombers. Others want to prosecute the surviving suspect as an enemy combatant.
Martin Richard, the 8-year-old boy killed in the Boston Marathon bomb attack, once held a sign that said 'peace' and 'no more hurting people.' Research finds a pattern of lessening violence as human history moves forward.
As authorities searched for suspects in the Boston Marathon bombing case, online amateurs used social media and other sites to crowdsource the investigation. But like citizen journalism, 'citizen law-enforcement' has its downsides.