I don’t pretend to know the entire story, but I think it reads that the perp stuck his gun through the pet door, so the defender was on one side of the door, and the perp on the other. Pumping all of his rounds through the door not knowing exactly the where the target is seems like a perfectly sane thing to do after seeing a gun pointed into your home.
Oh....I fully accept accounts now of his accuracy.....I’m just disappointed that the ammunition didn’t hold up through the door. The perp should not have been breathing when EMTs arrived.
By the same token, it would make it a miracle for the homeowner to get 6 center-of-mass shots on the perp.
On the other hand, maybe the homeowner used the hole from the first shot as a peephole, improving his odds.
≤}B^)