The crack of gunshots can be heard nearly every night in some of the District's deadliest neighborhoods -- and no longer just by the people within shooting range.
The sounds are being picked up by the police department's newest tool: ShotSpotter, a network of noise sensors that identifies and pinpoints gunfire. Over the past few weeks, the technology has guided police to three homicides in Southeast Washington, and in one case officers got there rapidly enough to make an arrest.
