of his child that he's the one who raped and killed two college students. >> oh my god. no. rex, please. >> it was emotional. yeah, it really was. >> why did you do that? >> she had a serial killer for a boyfriend and she didn't know it. >> no. leave me alone. god. >> calm down. >> she was at that time, i think about seven months pregnant, and immediately started hyperventilating. to the point we finally had to call a paramedic to come and treat her. >> what's going on? >> she just got some bad news. >> with the interrogation over, he brings investigators to the crime scene, keeping his promise to larry hobbson. >> he liked larry. it's a weird relationship. but it's a relationship. >> despite that relationship,