CNN EarlyStart April 17, 2013 10:33:00
The boston marathon bombing. a lovely, lovely tribute. and i can tell you, it mattered. welcome back to this special edition of "early start," everyone. i'm john berman. >> and i'm chris cuomo. the picture behind us right now kind of tells the story. armored humvees. we know who they are, right? we know that we have the national guard here. they're providing support to some 30 agencies conducting what's called a frantic investigation. we're going to start this half hour with the new developments in the boston marathon attack. newly released photos showing the remains of one of the detonated de...