[nomadking]

Don't the police normally check somebody's computers etc, when this sort of accusation had been made? They look for other examples of similar alleged crimes. No reports of that having been done, although any evidence will have long gone.
If his actions had been aimed at those older than say, 30, there might not be much need to investigate. As his actions have been aimed at those near or at teenage, then there is the possibility of having strayed into illegality, even if unknowingly.