The new episode of “Dateline” on NBC4 tells the story of the Delphi murders, where two teenage girls were brutally murdered while out for a walk, with the killer caught on camera by one of the victims.

Here is a gist of the upcoming true-crime Dateline episode - two teenage girls go for a walk on a historic bridge, and snap a quick picture on Snapchat. And then they vanish. A se

The high-profile case of two murdered Indiana teens takes a stunning turn after video of the killer, taken by one of his victims shortly before their deaths, is revealed. Andrea Canning reports Friday,