Yeah, wierd. The relationship between the burglers and homeowner seems strange. And then asking someone to watch your place when you are expecting trouble? Makes me think the homeowner was perhaps a felon and maybe he did have prohibited/hidden guns. If so he would need someone to legally protect his possessions. He could not use/own a gun as a felon. Or maybe Kish was just an elderly person no longer able to defend himself. I don't know. I didn't see Kishs' age listed.
Overall, sounds like a couple of gang bangers needing booty to sell for drugs or money.
But how dumb or desperate were they to mess with a guy who allready had a "visible" gun?
The shooter/housesitter was justified fo sure.