Be prepared for the legal battles. You can't kill just one of three because the other two will have a different story for the Judge and jury. You have to kill all three. No witnesses. Even then, you can have trouble. Here is a link where the parents of a burglar sued for wrongful death--for the burglar's 3 year old daughter and won $300,000 because the burglar did not intend to hurt anybody.
http://www.gunreports.com/news/news/...766a:&st=email
It's wrong, but that is the way this crazy country is.