so the prosecutor turned his attention to bambi's boyfriend. rick gagnon. >> he's aligned with bambi. he was extremely faithful to bambi. >> and according to humphries, willing to do anything for her. you've got the daughter and boyfriend who seem to be in some sort of conspiracy? the theory goes. >> an agreement to accomplish a goal. >> the alibi bambi and rick gave detectives that they were at home during the hours leading up to the murders was difficult to prove. each gave the other as a witness. >> she said, we were at home. you know, rick was there, i was there, my boys were in the other room. >> the prosecutor began to wonder, could those mysterious blood droplets at the crime scene be linked to rick and bambi. >> dna results did not come back. >> you knew somebody else was in the house. >> it could have been rick. >> as humphries waited for the results, he obtained a search warrant and took another look at some of rick and bambi's belongings.