Federal prosecutors and defense attorneys for Tsarnaev have held talks on a possible plea agreement but failed to reach an agreement, U.S. officials familiar with the talks say. The discussions in recent months have centered on the possibility of Tsarnaev pleading guilty and receiving a life sentence without parole, according to the officials.

All of the militants in Tuesday's school attack in northwest Pakistan have been killed, Peshawar police official Mohammad Aijaz Khan said. The Taliban stormed a military-run school in northwest Pakistan on Tuesday, gunning down at least 126 people -- most of them children -- in one of the bloodiest attacks ever in the history of the volatile Asian nation.

Washington (CNN) -- This Congress is going out just the way it began: in complete disarray. Fourteen months after tea party conservatives ignored Republican leaders and forced a two-week government shutdown, another one came close to happening -- this time because liberals were blowing off President Barack Obama's pleas to support a government funding measure.

(CNN) -- Michael Brown's stepfather says he's sorry for his emotional outburst to demonstrators after learning a police officer wouldn't be indicted in the teen's death. But he says he's unfairly taking heat for the rioting that followed.