One of the two brothers suspected in bombing the Boston Marathon is dead after a shootout with police near Cambridge. A manhunt is underway for the second brother. The brothers have been identified as Tamerlan Tsarnaev, 26; and still at large: Dzhokhar Tsarnaev, 19.
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Police are pursuing Dzhokhar. According to media reports, authorities have also detained a suspected accomplice on an Amtrak train headed to New York.
Read this AP profile of the the Tsarnev brothers.
Watch the video surveillance of the Boston Marathon suspects at the marathon on the next page.