Lawyers are set to deliver closing arguments in the trial of a mentally ill man who shot and killed 10 people at a Colorado supermarket in 2021.

The fate of a gunman now rests in the hands of a 12-person jury, who are tasked with determining not if he committed the heinous act, but whether he was legally insane when he drove to a Boulder, Colorado grocery store and opened fire,

A mentally ill man carefully amassed the guns and ammunition to kill as many people as possible before pursuing and fatally shooting 10 people at a Colorado supermarket in 2021, proving he knew exactly what he was doing,