self defense probably...but this is not something to rejoice about...the guy who got shot will harbor a sense of revenge now....too bad people are so unhinged nowadays where any little incident gets blown up into a confrontation...
GOOD LUCK with YOUR “Self Defense” tactics in the future.
IF you think you have time to get such a person to answer your questionaire about what their intent is-—PLEASE make sure YOUR funeral arrangements are PRE paid.
I would bet this ‘door open & intrusion’ took no more than 6-7 seconds.....IF that.