night of the murder knudsen interviewed them. >> my name's eric knudsen, by the way. >> i'm pamela. >did they seem nervous or agitated? >> not nervous or agitated. just kind of unemotional. >> even at times cold toward the victim, roger's father. >> he's a cantankerous old fart and says his mouth to everybody. >> as they told their stories detectives started noticing subtle differences. >> and they had blue fuzzy gloves. they looked like women's driving gloves or something. fuzzy. >> i know they had purple gloves on. purple medical gloves. >> lot of details on which they didn't agree. so sergeant knudsen decided to employ a well-known police interview technique. he got tough, accusing. >> quite frankly stoi think the story's a bunch of crap. i think the stoirs a bunch of crap that you and wrornlg have come up with. okay? >> does it sound too rehearsed or -- >> yeah. >> okay. >> i want them to say i had nothing to do with this, detective, you're crazy, i had nothing to do with this. that's what i wanted to hear. but it never came out. >> but listen to what did come out. >> is your husb