Bang bang, they hit the ground

Baltimore Crime turned me on to this:
Spotcrime maps every shooting in Baltimore (City and County) for 2008. Hit ‘start’ at the top left. Whether you want Turning of the sound to hear the bang bangs is up to you. At the time of this writing, I’m still only in October.

I can’t tell if this is sick or genius. If I’m in doubt, I usually go for the latter.