Former Marine Cpl. Eddie Ray Routh stands during his capital murder trial at the Erath County, Donald R. Jones Justice Center in Stephenville Texas, on Tuesday, Feb. 24, 2015. Routh, 27, of Lancaster, is charged with the 2013 deaths of Chris Kyle and his friend Chad Littlefield at a shooting range near Glen Rose, Texas. (AP Photo/The Dallas Morning News, Michael Ainsworth, Pool)