While this story and stories like it cause us all to feel sick, to feel anger and fear, to cry for the innocent victims and question how such evil can exist in this world... I believe that it does renew our vigilance, and threads like this can hopefully be used as a positive discussion point as to how we can all learn the most to prevent these horrible things from happening.
Some great points have been made already, and Gymjunkie, even though you didn't tell anyone, you were able to get out of the situation and keep yourself safe. Truly that is exactly what you needed to do. It is the trusted adults around you who are responsible for creating an environment where it would have been easier for you to tell someone. Never feel guilty about that. You stayed safe.
There have been a few situations in Ontario where people have been removed from competitions for taking what was deemed to be inappropriate pictures. Men with no affiliation to the gymnastics world taking closeup "crotch shots" on different events. The only way i learned of this was when our club hosted a meet the pictures of the men were posted at admissions and we were to watch for them and contact security. I also worked security inside the gym and that was one thing we were to be vigilant for, was the people taking pictures.
It is a frightening world, i don't know if its more so in the world of gymnastics and youth sports or not. I do think we can use this forum to help us as parents, coaches and older athletes to create a safer environment for our athletes, our children.