The ‘American Sniper’ murder trial: Was Chris Kyle’s killer legally insane?

Former Marine and Iraq War veteran Eddie Ray Routh shot and killed former Navy SEAL Chris Kyle, the subject of the popular movie ‘American Sniper.” Routh also killed a second man, Chad Littlefield, 35. The two victims were attempting to help troubled vets by taking them on outings, including to the shooting range in Erath …