it took three years, but in 2008 the state was ready to try rick gagnon for the the murders of rick andmphreys started his questioning. >> this is purely motive evidence which establishes a motive for richard gagnon to end the lives of these two people. >> as humphreys recalls, the case against rick was always motivation strong, evidence weak. not much more than a drop of charlie parker's blood on a shoe when you came right down to it. even so, humphreys told the court the blood put rick at the murder scene. >> he had a story for it, didn't he? >> he did. it didn't hold water but he had a story about it. >> humphreys recited rick's version of how blood got on his shoe. how he had gone into the parker house to get a set of car keys some time after crime scene techs finished up. >> he looked into the window leading to where big charlie had died and noticed the blood. >> rick said he worried bambi pacing outside might look in the window and freak out all over again. >> he went in and stepped through the bathroom and closed the blind. >> whoops, i stepped in the blood? that's his story? but

and both showed deception. >> rick gagnon in particular showed deception. >> police then sat rick andb by down in separate rooms for another round of questioning. this time the gloves were off. >> you want to charge me with something? >> answer my question. >> i didn't do anything. >> they hoped for a confession or at the very least that she give up rick. she didn't do either. >> you don't want to be charged? >> no, i'm not going to be charged because i didn't do anything. >> lock her ass up. you're not going to tell us anything, lock you up. put handcuffs on her. charge her with two counts of murder. >> but the detectives weren't done yet trying to break bambi. on her way to her booking, bambi said the hammer came down hard one more time. >> they surrounded me like a pack of wolves, and they said, go get those crime scene photos of her mama and daddy. and i said, no, no, no. and i was just trying to cover my face. and he was pulling my hands off of my face. and he said, you did this. you. >> detectives said the same thing to rick gagnon. >> they arrested me. that was pretty much it.

we don't know, said the defense, but it wasn't rick gagnon. d out to deliberate. rick waited with his attorneys and the woman many felt to be at the heart of it all held her breath. >>> coming up -- the jury renders its verdict. >> i didn't know what to think. i didn't know what to think anymore. >> but this isn't the end of the case because finally investigators learned who left those mystery blood drops at the crime scene. >> he said they identified the killer. -i've seen lots of homes helping new customers bundle and save big, but now it's time to find my dream abode. -right away, i could tell his priorities were a little unorthodox. -keep going. stop. a little bit down. stop. back up again. is this adequate sunlight for a komodo dragon? -yeah. -sure, i want that discount on car insurance just for owning a home, but i'm not compromising. -you're taking a shower? -water pressure's crucial, scott! it's like they say -- location, location, koi pond. -they don't say that. your hair is so soft!say -- location, location, koi pond. did you use head