Season 2016 - Episode Guide

The mysterious manhunt for the killer of hometown hero Lt. Joe Gliniewicz in Fox Lake, Ill.

On May 17, 2015, a fight between two rival biker gangs at a restaurant in Waco, Texas became a bloody and horrifying gunfight that wounded 18 and killed 9.

A special look inside the life, pursuit and capture of alleged Mexican drug lord and alleged head of the Sinaloa Cartel criminal organization, Joaquin Guzman Loera, aka El Chapo.

Former presidential candidates Mitt Romney, Michael Dukakis, John McCain, Walter Mondale and Bob Dole share their experiences of losing the presidential race.

Exploring the possibility of the world being on the verge of an arms race in outer space and the belief by some experts - military and civilian - of the inevitability of conflict in space.

Fareed Zakaria examines the successes and failures of Obama's eight-year presidency, looking at both his ambition and the way that led him to try to put new policies into place. Too often, Zakaria said in an interview, "We focus on the sensational and the daily scamper. What we are trying to do is ask what will this presidency look like when the history books are written?"

Exploring the theories, secrets and bombshells of the mysterious murder of JonBenet Ramsey; a rare interview with John Ramsey.