I'm not entirely sure specifically which 'Lured Innocence' true story you're referring to. It could be about many things, like the luring of an innocent person into a dangerous situation, perhaps a criminal act such as fraud or kidnapping where the perpetrator targets someone naive or trusting.
Since I don't know the exact 'Lured Innocence' story, I can't say for sure who the main characters are. But generally, there would likely be an innocent person or group who are being lured, and then there would be the lurer, who could be a criminal, a manipulator, or someone with ulterior motives.
It's still a mystery. Maybe it was someone with a hidden motive or a person who appeared innocent on the surface but had a dark side. The investigation could have missed some crucial clues.