. >> detective david fugate is watching the interview from an adjoining room.ive mark gilchrist have been working the case since jennifer cave's body has been found headless and handless in colton pitonyak's bathtub eight days earlier. >> do you understand what i want you to do? >> yes, i do. >> think about that. when i come back, you can make a decision. >> absolutely. >> i interpreted this as false caution on his part. i think it was an effort to make laura hall feel like he was looking out for her. >> okay. >> okay what? >> i'll talk to you. >> okay. >> according to laura, she receives an early morning phone call from colton on august 17th, 2005, and accepts an invitation to visit his apartment near the university of texas. >> i saw someone's purse on the floor. i asked him about it. he wouldn't tell me who had been there. he told me to shut up, quit being a ho about things. >> that is normal for him to talk to you like that? >> sometimes. >> she denied having any knowledge of the murder at all. bit by bit, she would give a little bit of detail, enough to le