Investigators pinpoint two ‘possible suspects’ for the Boston Marathon bombing – CNN’s Susan Candiotti reports – Early Start with John Berman & Christine Romans

Investigators pinpoint two ‘possible suspects’ for the Boston Marathon bombing – CNN’s Susan Candiotti reports

(CNN) – Investigators have pinpointed two men as "possible suspects" who were seen in images near the finish line of this week's Boston Marathon – moments before twin bombs there exploded, killing three and injuring about 180 others – a law enforcement official said. READ MORE: Official: Two men sought as possible suspects in Boston bombing