Thursday March 13th, 1997 marks the date of the Phoenix Lights, the largest mass UFO sighting in US History. The night of the incident, four Phoenix residents vanished in the Estrella Mountain National Park, south of Phoenix. Glenn Lauder (28), Mitch Adams (29), Ryan Stone (27), and Jacob Reynolds (28) were reported missing to the Maricopa County Sheriff's office. The infamous "Lauder Case" has become the longest unresolved missing person's case in Arizona history.