The boys’ deaths — scattered in the United States, in Yemen, in Turkey and elsewhere in seemingly isolated horror — had one thing in common: They hanged themselves after watching televised images of Saddam Hussein’s execution. Officials and relatives say the children appeared to be mimicking the former dictator’s Dec. 30 hanging, shown both on a sanitized Iraqi government tape and explicit clandestine videos that popped up on Web sites and some TV channels. Full Story