Suspect in Afghan Killings Knew War’s Tensions From 4 Tours

The U.S. Army staff sergeant suspected in the killings of at least 16 Afghan civilians had experienced the stress of war from four combat tours far from home in Iraq and Afghanistan.

The Army Criminal Investigative Command is probing the killings and seeking a motive for the slaughter as officials in southern Afghanistan came under gunfire while consoling villagers whose relatives were shot dead by the soldier in their homes.