Boston police commissioner says no suspect is in custody in marathon explosions.
Two bombs exploded in the packed streets near the finish line of the Boston Marathon on Monday, killing two people and injuring more than 100 others in a terrifying scene of shattered glass, billowing smoke, bloodstained pavement and severed limbs, authorities said.
A third blast rocked the John F. Kennedy Library a few miles away and more than an hour later, but no injuries were reported, the police commissioner said. A senior U.S. intelligence official said two other explosive devices were found near the marathon finish line.