♪ 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-powered rifles, shotguns and a .357 magnum to hit. 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 on 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.