A 29-year-old man shot by Costa Mesa police responding to a violent robbery at a convenience store last year was convicted Thursday of attempted voluntary manslaughter.

Gabriel Tamayopaniagua was charged with attempted murder, but jurors convicted him of a lesser charge. Jurors also found true a sentencing enhancement for the personal use of a deadly weapon and inflicting great bodily injury on the victim.

Police responded to a call of a fight at a business in the 2200 block of Fairview Road at about 4:45 a.m. March 11, 2021, police said. When the officers arrived a robbery was in process, they said.

Police shot the knife-wielding suspect, who they said was attacking a cashier.

The cashier had stab wounds, police said. The victim and Tamayopaniagua were taken to hospitals to be treated for their injuries.

Tamayopaniagua’s sentencing is set for May 18.