Juan Zambrano, 45, a resident of Antioch, California, was shot and killed on October 1, 2019. Officers responding to the 100 block of East 16th Street around 3 p.m. found Zambrano with a gunshot wound; he was taken to a nearby hospital and later died. His death was the ninth homicide in Antioch that year.

Police arrested 33-year-old Arnulfo Coronado at a nearby residence believed to be the location of the shooting. Coronado was found with a semiautomatic gun and a large amount of heroin and methamphetamine. He was charged with Zambrano’s murder, including a special allegation of personal and intentional use of a firearm, and was being held without bail at the Martinez Detention Facility. The motive has not been disclosed.

Anyone with information about what happened on East 16th Street that afternoon is asked to come forward.