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WATERTOWN, Mass. -- Police say the 19-year-old suspect in the Boston Marathon bombings exchanged gunfire with law enforcement for an hour while holed up in a boat before being captured.

Boston Police Commissioner Ed Davis says the suspect, Dzhokhar Tsarnaev, was hospitalized late Friday in serious condition.

His brother, 26-year-old Tamerlan, was killed earlier Friday in a furious attempt to escape police.

The brothers are suspects in Monday's marathon bombings, which killed three people and wounded more than 180 others. The men are also suspected of killing a Massachusetts Institute of Technology police officer in his vehicle late Thursday.

EILEEN SULLIVAN
Associated Press