OMAHA, Neb. (AP) — A judge has denied bond for an 18-year-old man charged with first-degree murder in the shooting death this week of an Omaha jewelry store owner in what police called a botched robbery.

Milton Dortch has also been charged with using a firearm in a felony. Prosecutors say he also robbed a bank in west Omaha on Sept. 13.

The jewelry store shooting occurred Wednesday, when police were sent to JR’s Jewelry & Gifts. The store’s owner, 71-year-old James Minshall, had been shot three times. He was taken to a local hospital, where he was pronounced dead.

Prosecutors say Dortch told police he shot Minshall, believing the man was reaching for a gun.