A backyard gathering in West Valley City, Utah, turned deadly in the early morning hours of July 9, 2017, when 35-year-old Jason Bull was shot and killed. The party near 4274 West 4695 South involved alcohol and an argument among several men that escalated into a physical fight. During the brawl, 36-year-old Marshall Herron left the house, went to his nearby home and returned armed with a handgun. Herron opened fire, striking Bull multiple times; a 32-year-old man was also shot in the lower body and was expected to survive.

Police were called just after 2 a.m. and found Bull deceased. Herron remained at the residence and surrendered; he reportedly told officers several times that he had shot Bull but declined to give further details without an attorney. Investigators said witnesses were uncooperative and that alcohol and drugs were factors. Two handguns were recovered at the scene.

Did anyone at the gathering or nearby homes see what led to the fight or the moments when Herron left and returned with a gun?