steve was only 13 when his mother was found shot in an all all alley way downtown san diego. she was urdiales' third victim. >> she was 17 years older than me. absolutely tried her hardest to make sure that i had a good life. from those whole first 13 years of my life it was only her and i. >> when he was skilled, steve moved in with his dad in an effort to get to know him, marianne was going through a rough patch. >> my mom was not a career prostitute. at the time of her death, obviously she was. does not matter because she's got every right to live and he robbed her of that. >> seven out of the eight women, urdiales killed were reported to be sex workers. >> prostitutes make the perfect