This is an excerpt from his article, where we are mentioned:
Ghosts of Yonkers
Founder and team leader of Yonkers Ghost Investigators, Jason Medina says Untermyer Park has a macabre history and is a great spot for paranormal enthusiasts:
"One place in Yonkers where we've gotten a decent amount of paranormal activity is Untermyer Park on North Broadway. We've gone there during the daytime and have gotten EVPs (electronic voice phenomenons — unexplained voices caught on tape), along with an image that appears to have an unexplained shadow figure. At night we've also recorded EVPs, especially at an old abandoned gatehouse located near the old carriage trail leading down to Warburton Avenue. It is said the notorious Son of Sam belonged to a cult that operated in this park during the late 1960s, until the late 1970s. Supposedly, they also sacrificed dogs here."
Here is the link to the full article