>In all, there were 46 potential witnesses to the shooting, including Trena McElroy, who was in the truck with her husband when he was shot. No one called for an ambulance. Only Trena claimed to identify a gunman; every other witness either was unable to name an assailant or claimed not to have seen who fired the fatal shots. The DA declined to press charges. An extensive federal investigation did not lead to any charges. Missouri-based journalist Steve Booher described the attitude of some townspeople as "He needed killing."

0. https://en.wikipedia.org/wiki/Ken_McElroy#1981_killing

Doesn't the jury verdict need to be unanimous? If they can't come to agreement, they redo the trial I thought. So one jury member can force a retrial, but can't force a not guilty verdict.