TIL The parents of one of John Wayne Gacy’s victims, John Butkovich, called police more than a hundred times to urge them to investigate him further. Their son had vanished in 1975, and had been one of Gacy’s employees.

https://www.reddit.com/r/todayilearned/comments/ch7bny/til_the_parents_of_one_of_john_wayne_gacys/