A law enforcement official says it's possible that a man who was stopped by police as he ran from the scene of yesterday's bombings at the Boston marathon was simply running to protect himself from the blast, as many others did.
The official says the man was tackled by a bystander, and then by police.
According to police, this is the man whose apartment in the Boston suburb of Revere was searched by FBI agents overnight. Investigators were seen leaving with brown paper bags, plastic trash bags and a duffel bag.
