Mistakes happen, every single day

"The body of his cousin, a 32-year-old construction engineer who had taken a break from his job in a far-off province to visit his family, lay sprawled next to those of his wife and their seven-year-old son. Blood ran in dark pools on the mud floor of the terrace outside their door. The wife and son had been shot in the head, each with a single bullet. The engineer had died from a shot to the chest. The precision of the killings, coupled with his failure to find any bullet casings after the raid, led Omar to believe that his cousin was murdered either by US special forces or by an intelligence agency. The sole survivor was the couple’s younger son, aged six, whose upper torso was riddled with puncture wounds from grenade shrapnel." (thanks Olivia)