Six times? Dad needs more range time. Get the whole family down to the range because that sicko neighbor will be back.
'We're still tussling. I'm punching, punching, punching him. It's like it's being effective, but at the time we're fighting, I'm screaming "Get something! Grab something! Get something! Grab something!" and next thing I know he got shot.'Something isn't quite right in the dad's description of events. It sounds like maybe he is covering for his wife or daughter. Like maybe he was grappling with the perp and the wife/daughter grabbed a gun and shot him?