craig melvin. was byron smith justified, in killing two teenaged intruders? nickr were both unarmed when he shot them. also, troubling to police. the 64-year-old waited a full day, to call for help. now, smith was about to give detectives a chilling account of what happened in his basement. and it would turn this case on its head. here, again, is kate snow with "12 minutes on elm street. " >> nick brady and haile kifer had broken into byron smith's house. the frightened homeowner said he had shot them in a moment of self-defense. but investigators had questions for byron. so, sergeant luberts escorted him to headquarters right away that friday. >> can you tell me your full name, please? >> byron david smith. >> i just wanted his story. i wanted to find out the rest of the facts of what happened at the house. >> whoever it was, who was breaking into my home, had been doing it for so long, that i was no longer willing to live in fear. >> byron explained how he'd been terrified, ever since that break-in, a month earlier, when two of his guns were stolen. >> these are