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FBI Searches for Clues About DC Navy Yard Gunman

What turned Aaron Alexis from a civilian contractor into a mass murderer?
09/18/2013
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Nightline 10/14: The Underground World of Colombia's Child Sex Trafficking Trade
The Underground World of Colombia's Child Sex Trafficking Trade; Undercover for Alleged Underage Prostitution Raid at Colombia Villa

The Underground World of Colombia's Child Sex Trafficking Trade

The Underground World of Colombia's Child Sex Trafficking Trade

Part 1: Former CIA agent Tim Ballard and team set up a sting operation with authorities in Cartagena.

Undercover for Alleged Underage Prostitution Raid at Colombia Villa

Undercover for Alleged Underage Prostitution Raid at Colombia Villa

Part 2: Tim Ballard's team sets the trap for alleged child sex traffickers who think they a bringing girls to a party.