I am surprised that law enforcement authorities have not issued a public notice for something like this....
If the law-abiding citizens in the area cannot carry guns (which MIGHT put an end to the sniper if seen), they SHOULD AT LEAST CARRY CAMERAS!!!
I would like to see everyone armed with a camera if they cant have a gun. Damn near everyone owns a camera, and last I heard they were still legal to carry...
If your a moron and have to ask why...A camera is 100 times better than the mental recall of almost any witness.
If someone IS able to photograph the crime scene within 15-30 seconds of a shooting, WHO KNOWS what kind of evidence might show up?
Think of all the other cars at the scene that have occupants...Look for the ones who have not offered any testimony.
Just my 2 cents