Pavlyuk, 53, was a surviving resident of besieged Ukrainian town where gruesome evidence of killings and torture has come to light following withdrawal of Russian forces. He told when Russian troops came they killed all the men who were younger than 50, including two of Pavlyuk's friends. Pavlyuk was given 20 minutes to bury them. He showed shallow graves he hastily dug, each marked with a plank of wood topped with a religious icon. He wanted to give whatever dignity he could. "But it's too shallow," Pavlyuk said. "I just wanted to protect them from the dogs." Pavlyuk and other...