i said, okay. so i just let her be. >> as for conrad's behavior after police arrived at his door. he said he had good reason for acting that way. >> i was trying to save my wife. i don't know, does that make sense? i just wanted her to live. >> i get how frantic you must have been. i'm not sure i understand the threatening part of that. i think that's one of the things that ended up getting you in trouble. >> it could b. i was like, do i have to, how do i explain this to you guys, like get her help. when you can't explain that to someone, i just started making threats. >> well, if all that's true, then why and how did heidi wind up with a bullet in her head? >> i think police found it hard to believe that you could be right there with her in a very small area and she's shot and you don't know what happened. >> yeah, maybe in their heads. in mine, i was just confused. >> could this be an accident? >> what i say to that is, see, i don't know what happened. >> that's how he felt just hours after the shooting. but as the months passed, conrad came to the conclusion, heidi may have taken her own life.