As was said, we didn't see the prelude to the events but I'm not sure why he felt the need to point his weapon at them while they were cuffed on the ground. IMO he should have acted a bit calmer and not gotten into a yelling match with the people involved but rather radioed for backup and maintained control until they arrived. A little coolness on his part may have calmed things down a bit. Classy neighborhood BTW...to me, the older guy in the wifebeater appeared to be lit. I agree with Scruit though, he's outnumbered with a number of agitated people nearby and for all he knew, some jackhole could have fetched a shotgun or something and ruined his day.