in the summer of 1980, an unusual type of serial killer, a racist sniper, roams the u.s. looking for targets. in states from virginia to oklahoma, he's used high-powerful rifles, shotguns and a .357 magnum to kill. in salt lake city, detectives are facing a double homicide that has all the trademarks of this serial killer. >> we had reports of several shots fired. when we arrived here, we had two victims down. we do have confirmed two of the victims that they have expired. >> two young men, 18 and 19, both black, and well regarded in the community, are dead. the two white girls they were jogging with escaped.