. >> also in that same neighborhood, gina green, a nurse was sexually assaulted and murdered in her home. in all three cases the common thread was the telephone. either the killer took the victim's telephone or used the cord to train his victim. this led to speculation the killer asked his victims for assistance. everything he touched it took him. those were his trophies. >> when residentthey learned a was on the p loose they took every procaution. at night the streets were empty. it wasn't enough. several months later, the killer struck again. 23-year-old denae colam never returned home. she was sexually assaulted and beaten to death. a witness reported sighing a white male in a white pick up truck near the cemetery juxt like pam's case. and the killer wasn't through. the body. 26-year-old carry was found near the whiskey bay bridge, not far from where pam's body was discovered. dna tests confirmed the same man sexually and presumably killed all five women. >> i think he was doing a lot of surveillance work. he was stopping his victims. he knew his move pts. he will be tough to catch. >