Police Hunt Second Boston Marathon Suspect, First Suspect Dead

This article was written and reported by Chris Caesar, John Waller, Daniel DeMaina, Franklin Tucker, Ryan Grannan-Doll, and Liz Taurasi

Officials confirmed early Friday morning that they are searching for the second Boston Marathon bombing suspect in Watertown following a chaotic night that left the first suspect dead.

The Associated Press is reporting the surviving Boston bomb suspect is identified as Dzhokhar A. Tsarnaev, 19, of Cambridge.

"We believe this man to be a terrorist," Boston Police Commissioner Ed Davis said at a post-4 a.m. press conference about the at large suspect.

"We believe this to be a man who's come here to kill people. We need to get him in custody."

An MBTA Transit Police Officer was shot during the overnight manhunt through Cambridge and Watertown.

Richard (Dic) H. Donohue Jr., 33, is in surgery now at Mt. Auburn Hospital, according to a police spokesman just after 8 a.m.The suspect is considered armed and dangerous.Related Stories

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