The Cropsey Urban legend is a staple on Staten Island in New York.  Most of the children who grow up in the area have heard of the escaped mental patient who lives in the tunnels under the abandoned hospital. This version or similar stories tell of a crazy man who has an affinity for naughty children and would come out at night and snatch them.  They would disappear forever.  This well known tale unfortunately, like many tall tales and spooky nursery rhymes, has some basis in reality.  Cropsey may be based on a  real life serial killer named Andre Rand  who preyed on some of the weakest people, children and even worse, mentally disabled children.
Resources:
https://classicnewyorkhistory.com/history-of-willowbrook-and-the-terrifying-legend-of-cropsey/
Wikipedia
https://allthatsinteresting.com/andre-rand-cropsey
You tube link: https://www.youtube.com/watch?v=OpUCLbTqABI
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