How to Find a Video of a Shooting

This is from, thisis from later on. After the first person gets killed, we can see someone in a baseball cap, a black and orange bag and what could be a green shirt, running through a street. A some runs over to the individual with the gun and kind of punches him in the head, not knocking his hat off. So now the person running with the gun does not have a hat. An individual with theGun keeps running, but trips and falls on the ground before people try to disarm him. Four more shots are fired from the suspect, and on onee person dies as a result  to this. Other person gets their arm nearly blown off. There is