Or you could tell them and the employees could stare at him and talk about him without him knowing they heard (from you) that he's a "child predator". They will scrutinize everything he does, maybe tell people to stay away from him. Maybe word will get out and it will get back to someone he knows, or maybe even his job. And maybe you're completely wrong.
Just do the same to him when he's working out. You can be a child predator predator in a sexy fence-net shirt.
We had a situation one time at the recreation center at UH in which a guy would wear sunglasses and look at girls working out. The girls noticed it because the guy would not even work out instead he just got close to them to look at them. He would wear the sunglasses so that people would not be able to see where he was looking but he still got caught. The girls then reported it to management who then banned him from going to the rec. So I would suggest that you do let management know so that they can keep an eye on him.
That is exactly what I was thinking. For all you know he was her gymnastics coach, track coach or whatever making sure she is doing her workout correctly.
Child predators are real. We all have to take some responsibility in watching out for kids. If a middle aged man is lewdly watching 11 - 12 -13 yr old girs someone should be made aware of it. I'm not saying he should be hung but letting management keep an eye on the situation is not a overreacting. There is a difference in the way a "coach" looks at a child and the way a pedophile stares at one. We do not want to overreact but we do need to be vigilant. Should we wait until another 12 year old goes missing to react?
I told the manager at 24 hour fitness today about what I saw yesterday. He thanked me and wanted to know all I could remember. I told him ten times I hope I am 100% wrong but felt he should be aware of what i saw. He said he will review the tapes of that area from yesterday. He said he has to kick perverts out of the gym often and these types of things are too common and he hates it. He seemed to really care which I appreciated.