Welcome to WatchMojo, and today we’re counting down our picks for the top 10 must-watch documentaries about people who vanished without a trace. #10: “Gone Girls: The Long Island Serial Killer” (2025) ...

The documentary examines the disappearance of eight-month-pregnant Laci Peterson in 2002 and the investigation that ultimately led to the conviction of her husband, Scott Peterson. It focuses on the ...