finger at brian the family went ballistic. darlie wrote me a letter scene said you have to think of what you are doing. i have to admit i said you need to think of what you are doing. >> the polygraph wasn't the only revelation about darin. pardo hired a private investigator who discovered before the murders, darin suggested hiring someone to rob his house so he could collect insurance money. >> he came up with a screwball scheme. he had done one insurance scam with a car. he got the money for the car. >> in a signed affidavit, darin admitted to the car scam and his plot for a home robbery. >> i've known darin since he was 15 years old. possibly you could get me to believe that he set it up for a robbery because he talked about