I see both sides of this and frankly am not sure how I would handle the situation. On the one hand, it is easy for folks to post "yeah, I'd have killed him, he's in my *&% house!!!". On the other, thieves (who could also be hopped up and not averse to using violence to get what they need for their next score) certainly make my blood boil. After all, THEY are the ones that have decided that property is worth more than their own life. Especially in Texas with our castle doctrine, a homeowner has every legal right to use deadly force in a similar situation.
Pro: the dearly departed will never do it again.
Con:the homeownermay be tried on criminal charges.
Pro: the late burglar isn't around to testify about the shooting.
Con: he might get sued.
Pro: the dead guy will definitely not retaliate after a mere burglary arrest & quick bail.
Con: his friends or family might.
Pro: some other idiot might think twice about this line of work.
Con: probably not. Most of these guys aren't making rational decisions nor do they read the news.
Pro: a grand jury will likely no bill him or, if indicted, he's got a great case for the petit jury.
Con: can he afford it and he's risking his own freedom.
The bottom line is that I don't know that there is a "right answer" here. I have no problem with the way it turned out but I wouldn't have second guessed the guy if he would have simply held him for the cops.