nicole tinan's tormentor, alex campbell.he case snowballed after an alert cook county detective trained to look for signs of trafficking notified federal investigators. >> when i first met julia, she was a very scared young lady. >> julia reported her boyfriend had beaten and threatened her. >> he said many times that he would kill me and nothing would stop him. >> she feared for her life and she feared she could be killed by him and thought she would be killed by him for going to the police. >> vanhorn plugged julia's so-called boyfriend's name into the computer. >> before i started this case, i never even heard of alex campbell. once i put him in the system, i found an extensive criminal history. >> in 1986, campbell shot his way into a house, then held two women captive in a tense standoff with chicago police. convicted of attempted murder, home invasion and kidnapping, campbell served ten years. after his release, he was arrested again for selling young women. and many of those women like julia sported that telltale hors