One night six years ago, at a Sheraton Hotel just east of Los Angeles, a woman went over the balcony of Room 813 in the middle of the night. If she screamed, no one heard her. If it was a murder, there were no witnesses. If it was an accident or suicide, the circumstances seemed strange. The woman's death would be Det. Ray Rodriguez's last case in a 33-year career. It was just after 8 a.m. on Nov. 13, 1996, when he got the call. There was an apparent suicide at the Industry Hills Sheraton. But was it murder? Correspondent Bill Lagattuta reports