20/20 returns for Season 45 on September 23, 2022. Season 45 Episode 36 is titled “Long Island Serial Killer” Here is the synopsis ” Investigation of the Gilgo Beach murders.” All-New 20/20: The Long Island Serial Killer and the arrest … Continue reading Long Island Serial Killer S45Ep36 Preview via @stacyamiller85 @ABC2020 @ABCNetwork #ShannanGilbert #RexHeuermann