If the LEOs are to be believed, the surveillance video shows the kid trying leave the store when shot. A big no no when considering employing deadly force.
It's too bad the judge didn't seem to take the clerks mental state into consideration (regardless of what he claimed), his wife having been shot 6 weeks earlier; and the fact that the punk he shot had once attempted to kidnap a 6 year old girl. A real bad seed.
Hopefully he'll be released early.