It's a good quality video taken by a construction worker from across the street.
He's saying on FB that several news agencies are trying to get it from him.
It doesn't show the perp but it does show his car and the LEO's closing in, shooting and then retreating as they realize there may be explosives in his car.
If you know him, I'd recommend he take it down off facebook if he wants it to have any value or any negotiating leverage. fb terms of service may give them license to sell it and cut him out.
