The New York Times found 121 cases in which veterans of Iraq and Afghanistan committed a killing in the United States, or were charged with one, after their return from war. In many of those cases, combat trauma and the stress of deployment - along with alcohol abuse, family discord and other attendant problems - appear to have set the stage for a tragedy that was part destruction, part self-destruction.

Three-quarters of these veterans were still in the military at the time of the killing. More than half the killings involved guns, and the rest were stabbings, beatings, strangulations and bathtub drownings. Twenty-five offenders faced charges for murder, manslaughter or homicide for fatal car crashes resulting from drunken, reckless or suicidal driving.