When they released the voice, I immediately thought it was someone who is a teacher or coach due to the tone of their voice and the way they sound like they are calmly in control.<modsnip> Anyhow, I definitely think the teacher/coach angle is plausible for several reasons. 1. He sounded in control and like he was used to being in control and controlling people with his voice. 2. He would have been off of work and known there would be children out and about, mostly unsupervised because the rest of the world still had to work. 3. He may have overheard them talking about their plans to be at the bridge and had the entire weekend to plan. 4. It would have been easier to control them. And for those who say, "the girls would have said his name if they knew him" .... I don't think that's true. Just like he was able to control 2 girls at 1 time, it's quite possible he said to them immediately when he approached them "if you scream or say one word I will kill you." That would scare me into silence and I'm sure it would scare them too!