Are you familiar with the Shotspotter system? I’d seen it on a National Geographic TV show, and remembered in the back of my head reading about it being deployed in parts of Boston. It’s actually very cool how it works — it essentially has a big array of microphones, and when it “hears” a gunshot, it’ll compare the exact time of arrival of the sound at each location to triangulate a position, which then pops up on a dispatcher’s screen.
So I’m listening to Boston PD on the radio, and maybe five minutes ago the dispatcher called out for a reading on the ShotSpotter system. “Five, six, seven, looks like eight shots fired.” She figured out the location from the map (apparently, an alley), and started a couple cars. In maybe 60 seconds an officer was on the scene, reported a car leaving, and had confirmed that shots were fired with a witness.
About a minute later, the dispatcher said that they had received a 911 call for shots fired from the same location. (Which means that they had an officer arriving on scene by the time the call came in!) They’ve just pulled over a possible suspect, and another officer found the shell casings. Detectives are en route now for forensics processing.
I’ve got to say, this seems like a pretty impressive system.