The guy says plain as day
>If you come within three feet of me I'm gonna kill you

It doesn't matter if they were arguing over a mattress or a used ashtray, the point is not what they were wearing or arguing over, it's the statements and actions that wer made.

LOGICAL PERSON
>Why did you pull that gun in front of my kids and wife, that's not cool buddy.
>If you want the mattress that bad you can have it, come on kids lets get in the car and leave

FAGGOT WHO GOT SHOT
>Reeee I'll kill yew muthr fuker, durka durka my kids, in front of my wife derrrrrr
Back off, back off, I'm not playing
>Errrrrr I'll kill you mother fucker, fuck you
If you come within 3 feet of me I'm gonna kill you
(Comes within three feet of old man and pushes him, gets shot)

It's pretty cut and dry, if a guy pulled a gun on me, and I was unarmed especially if my wife and kids are with me, I'd calmy leave, let alone if two different people had guns and were calmy telling me to back off or they would shoot.