My point is, there might be witnesses to the prior verbal confrontation if there was one.. And I’m NOT saying violence is the proper response to a verbal confrontation!
Well, none have come forward, and in the time Harry was jogging past the gas station, a vehicle could have driven two miles.
If there HAD been a 'verbal confrontation', Harry would have been shot right then and there. That is how this works. Imagine 'disrespect' and then kill the source of it. They SHOT him because it was an EASY TARGET, the streets were mostly EMPTY, and they had Access to major highways two blocks away.