steve northup and katie monroe believed beverly had been convicted of murder based on statements thatced. they obtained detective riley's investigation notes, which katie described as revealing. >> he decided up front that it was a homicide, and he decided up front that my mom had done it. and then he viewed everything through that lens. >> and, she says, once the detective zeroed in on her mother, he resorted to police dirty tricks, and his bullying took its toll. >> he wore her down. and he caused her to second guess herself and her memory. >> but prosecutor jack lewis contends beverly wasn't coerced, saying she went along with riley because she had to explain why she flunked that polygraph and would say anything to keep the suicide theory alive. >> at this stage of the game, she still thought that suicide was a valid defense for her. >> but even the prosecutor admits the detective sounds like a bully. >> i've read that interview. >> sure. >> and if that doesn't sound like leading the witness -- >> absolutely. i could not -- >> i don't know what does. >> i could not agree with you a