In this case, it might have been a drunk at the wrong house.
Robbers that come through the front door will usually come 2 or 3 at a time, are well armed and know ahead of time that there is something valuable in the house. They will be inside your house before you have time to react most of the time.
I’m wondering if the ‘Castle Doctrine/Stand Your Ground’ covers shooting thru a door at an assumed threat? 2-3 coming thru at a time presents a lot of ‘centermass’, doesn’t it? LOL.