At this point he is advancing towards an armed man (which I would view as a threat to do me harm) & not responding to verbal commands to stop. So he's crazy enough to advance against my warning towards an armed person. He has to be crazy enough to do harm to me or my family. At which point I would shoot to stop the threat.He advances towards the door still now unarmed.........Since I don't have cuffs and my handgun is already out, reducing to OC that is buried in my pocket is not really an option.
In my mind the simple theft started the situation, but what got him shot was his failure to submit to commands given & his attempt to flee by knowing he had no fear of going through an armed man. So he wasn't shot over some tools that could be easily replace. He was shoot because his actions were deemed a threat to the man holding the gun.