A mosque in Cambridge, Mass., confirmed Saturday that Dzhokhar Tsarnaev and Tamerlan Tsarnaev, the Chechen-born brothers suspected in the Boston marathon attacks, infrequently attended services at the small center that was a 10-minute walk from their apartment. "In their visits, they never exhibited any violent sentiments or behavior. Otherwise they would have been immediately reported to the FBI," said the statement from the Islamic Center of Boston. "After we learned of their identities, we encouraged anyone who knew them in our congregation to immediate report to law enforcement, which has taken place." A copy of the statement was distributed to reporters and posted online. Anwar Kazmi, a memb...