Lock & Load!
For an interesting read, go to your respective states web site containing the General Statutes. There you will find specific law - in legalease - regarding this very topic. Here's the link to CT General Statues:
http://www.cga.state.ct.us/2003/pub/...#Sec53a-20.htm
Reads like I thought, if you reasonably believe that the intruder is imminently going to do harm, cause arson, etc. the use of deadly force is legal. In any case, there are two legal scenarios; criminal prosecution & civil liability = prosecutor or family - different burdens altogether, in the scenario first described in this thread, i like my chances after the double tap.