A trespasser breaks into a private home and attacks the homeowner. The homeowner's dog then attacks the trespasser, biting him savagely. Trespasser bleeds excessively, is taken to the hospital, then dies. What would the consequences be for the dog and the dog's owner? Would the dog be automatically put down because it killed someone, or would there be an exception made because of the circumstances?
(I've found this website - http://www.dogbitelaw.com/ - but I haven't been able to figure out a definitive answer to the question.)