Murders of Chris Kyle and Chad Littlefield

On February 2, 2013, Christopher Scott Kyle (born April 8, 1974) and his friend Chad Hutson Littlefield (born February 11, 1977) were shot to death at a shooting range near Chalk Mountain, Texas, by Eddie Ray Routh. The two were walking down range to set up targets when Routh opened fire with two handguns and hit both of them. Routh, a former Marine who was 25 years old at the time, had post-traumatic stress disorder. The case attracted national attention due to Kyle's fame as the author of a bestselling autobiography, American Sniper, published in 2012.