I take issue with what a previous commenter said:
"I have no idea what the pattern of a sexual predator looks like, and unless you are on the crime task working sexual predator cases, I doubt anyone on here does as well ..."
That's actually not true. The SafeSport training pretty exhaustively identifies these patterns and highlights things to look for. Just burying your head in the sand and saying "welp, who knows, who are we to judge, amirite?" is not an excuse for inaction and in fact helps predators continue to get away with things.