2021 Colorado supermarket shooter, Ahmad Al Aliwi Alissa, had untreated mental illness but was legally sane at the time of the attack.

State experts determined that the Colorado supermarket shooter, Ahmad Al Aliwi Alissa, had untreated mental illness but was legally sane at the time of the 2021 attack that killed 10 people. The results of the sanity evaluation conducted at the state mental hospital were discussed during a court hearing. Though the evaluators found that Alissa's mental illness likely contributed to the attack, they were "less confident" in their sanity conclusion than they would be in other cases.