In a July 27, 2011 photo, Dallas Police Department officer Andrew Litz spends some time with his wife Heather and their two children Zachary, 5, and Madison, 4, at their home in McKinney, Texas. After three combat tours in Iraq, he suffers from post-traumatic stress disorder and a traumatic brain injury caused by a 2005 roadside bomb. (AP Photo/The Dallas Morning News, Jim Mahoney)
Photo by Associated Press /Chattanooga Times Free Press .
published Wednesday, September 7th, 2011