I had a gay cousin, which gave a window into the gay lifestyle. I also was one of those "vulnerable boys" in high school, having an older gay man that I worked for inviting me to his apartment and trying to seduce me (before I figured out why he was so friendly -- yes I was naive). We also had an older guy managing a youth sports group one of my kids was involved with, who went to prison for seducing young vulnerable boys.
Sandusky also fits the pattern.
Ditto..