Trial set in Marshalltown convenience store murder Rocky Trujillo Posted: Mar 9, 2021 1:33 PM Updated: Mar 9, 2021 1:39 PM Posted By: Mike Bunge MARSHALLTOWN, Iowa – A man accused of killing a convenience store worker is pleading not guilty. Rocky Dean Trujillo III, 20 of Marshalltown, was is charged with first-degree murder, two counts of first-degree robbery, going armed with intent, trafficking in stolen weapons, and assault while participating in a felony. Authorities say Trujillo shot Michael Ray West, 48 of Marshalltown, at a Casey’s convenience store on February 15. West later died of his injuries. Investigators say Trujillo was identified as the shooter through security video from the store.