it looks to me like you perpetrated this crime. >> because you were involved in the murder. >> no. >> yes, you were. >> in what way? >> in what way? you were aware when it happened and you helped carry it out. and you stabbed your wife. >> no, i did not. >> yes, you did. you can sit here and smile. >> when brian bardo came back a and pointed a finger at darren, the family went ballistic. even darlie lynn wrote me a letter and said you need to think about what you're doing. i have to admit, i wrote back and said you're the one on death row. you need to think about what you're doing. >> the polygraph wasn't the only revelation about darren. pardo hired a private investigator. >> darren had come up with a screwball scheme, he had already