In the early evening of May 12th 2003, 10-year-old Holly Jones told her parents she was going to walk a friend home. She never returned. Everyone held out hope that she would be found safe, but when the little girl was discovered murdered it kicked off one of the largest manhunts in Toronto history. In this episode, the lead homicide detectives reveal the tactics used to catch Holly's killer. And Holly's mother shares memories of her daughter - and her family's efforts to fight child pornography.