Jason Medina owns and operates Yonkers Ghost Investigators. He is retired from the NYPD after more than twenty years' service. He has been conducting ghost investigations and haunted research since 2006. He is a member of the Kings Park Heritage Museum, where he volunteers as a researcher, photographer and blogger; a member of the Yonkers Historical Society where he volunteers as a researcher, photographer and writer; and a volunteer at Sherwood House in Yonkers.