Authorities confirmed at a mid-morning news conference that only two bombs went off Monday. Contradicting reports from the chaotic early hours after the blasts, they said that no unexploded devices were found.
Overnight, law enforcement officials searched a suburban Boston apartment building, interviewed a man and removed a duffel bag and two trash bags. But a law enforcement official later told NBC News that nothing of interest was found. They also issued alerts for a rental van and a man seen leaving the scene of the blasts.
Law enforcement officials told NBC News that authorities questioned a 20-year-old man who is in the United States on a valid student visa. He was seen running from the blast area, had burns and was interviewed in a Boston hospital. But an official told NBC News that interest in the man was fading. It was his apartment building, in the Boston suburb of Revere, that police and federal agents searched overnight.
The race drew 27,000 runners and has been run since 1897 on Patriots Day, the third Monday in April, which commemorates Lexington and Concord, the two battles in Massachusetts that started the American Revolution.
The year, the race coincided with the filing deadline for federal taxes. Security experts said the FBI would undoubtedly look into the possible significance of the date as they tried to find the bomber and the motive.Advertisements