48 Hours S25 E51 | Saturday, July 20: At 9 p.m.: A wealthy couple is targeted for death, but why? Then at 10 p.m.: The veteran detective who ran the investigation into the Long Island Serial Killer case speaks out for the first time on network TV.

Preview: "48 Hours" double feature

Help

26sec

It's double the mystery Saturday, July 20: At 9 p.m.: A wealthy couple is targeted for death, but why? Then at 10 p.m.: The veteran detective who ran the investigation into the Long Island Serial Killer case speaks out for the first time on network TV. Air Date: Jul 13, 2013

SATURDAYS

48 Hours S25 E51 | Saturday, July 20: At 9 p.m.: A wealthy couple is targeted for death, but why? Then at 10 p.m.: The veteran detective who ran the investigation into the Long Island Serial Killer case speaks out for the first time on network TV.

Full Episodes

Clips