There are new details tonight in that deadly shooting rampage at a tourism hot spot in Mexico. Officials confirm six Americans were among the injured. NBC News' Priscilla Thompson has the latest on the victims and what we're learning about the shooter.
The man who killed one tourist at a Mexican pyramid and wounded several others had materials in his backpack tied to a 1999 U.S. attack, a possible reference to the Columbine High School massacre.
A visit to the world-famous Teotihuacán site devolved into chaotic moments as tourists jumped from atop the pyramids and tried to duck amid the spray of gunfire.
