it was debbie. police quickly determined that the only shot fired in the house came from lars's gun. he said it was an accident -- a case of mistaken identity. >> everything happened so fast. >> reporter: nevertheless -- >> any kind of infidelities going on between you or with her anything like that? >> no sir. i trust her completely. completely. >> reporter: lars answered each of the investigators' questions. >> reporter: in return, he just wanted to know one thing -- >> nobody has told me anything about if she's alright. >> reporter: so after two hours of talking, they broke the news -- >> i don't know how to tell you this, but your wife didn't make it. okay?