Given that the cops released the guy, I suspect there is more to this story than is reported here.
I've known lots of bar owners, but haven't met any that closed up then put on brass knuckles to leave the bar.
Seems possible to me that these two left the bar looking for a fight. I've certainly seen that happen. Homeless guys are usually pretty easy to kick the heck out of, since they're generally undernourished and often mentally ill.
Could be they picked the wrong homeless guy to rough up that night.
I'd like to hear more of the story.
I wonder what Martin was doing while that bum beat up his buddy.
Perhaps he was trying to do a "BumFights" reenactment.
Oklahoma is shall-issue for concealed firearm carry permits, and in most states, brass knuckles aren't considered a "defensive weapon." If the guy was concerned for his safety, pepper spray and a Glock 30 would be more sensible self-defense than brass knuckles.
Could be.
Bar owner didn't "bounce" that night, feeling his oats - went searching for a fight.
To beat up on a wine-o ain't no big deal, until those brass knucks are outdone by a length of steel.
Oh yeah, that makes sense. Two guys with brass knuckles decide to roust a bum. One of them cracks the bum in the jaw with said knuckles.
The wine-sodden bum then beats the crap out of one guy with a pipe, killing him, and chases the other guy away.
Yeah, I'd say there is more to this story.