Police rush to a Watertown neighborhood as reports of 2 dozen plus gunshots ring out.Reports that Boston bombing suspect may be in boat in back of home. Police on scene now.

Police have pinned down a suspect in the Boston suburb of Watertown. Multiple shots were fired in the area, and police have told residents to stay inside and shelter in place. Police see him moving, have visuals on him and have him cornered.

Thousands of law enforcement officers conducted a nearly 24-hour door-to-door manhunt for Dzhokhar A. Tsarnaev.