I could swear he had already shot one guy (in the head) before he got chased. The derps are trying to say skateboard dude and hit by car dude were trying to 'arrest' him for shooting the first guy.
He was chased at least twice. Once on the parking lot where hole in the head guy died.
Then after checking on the guy, he called -maybe 911—and then dudes started coming up and making comments and he took off with skate board guy and sneaky felon bicep gone guy hot on his trail.