BOULDER, Colo. — A man accused of killing 10 people in a Colorado supermarket nearly two years ago remains mentally incompetent to stand trial, a judge said Friday.

Court proceedings against 23-year-old Ahmad Al Aliwi Alissa have been halted for more than a year after Judge Ingrid Bakke declared him mentally incompetent in December 2021 and sent him to the state mental hospital for treatment.

Prosecutors revealed Friday that hospital experts have found Alissa has symptoms of schizophrenia and the district attorney’s office wants to select an expert to conduct a «forensic neuropsychological evaluation.» After the brief hearing in Boulder, District Attorney Michael Dougherty said that part of the purpose of the external evaluation would be to determine whether Alissa’s symptoms are consistent with a mental health disorder, but he did not elaborate on Alissa’s condition.

Alissa’s lawyer, Kathryn Herold, objected to the forensic evaluation, so Bakke delayed the decision to allow it for at least a month, giving both sides time to present their arguments in writing.

Bakke said the latest report from the hospital that found Alissa incompetent also said she has a «reasonable likelihood» of reaching competency, a view also expressed in previous reports.

He did not elaborate on the report, which, like previous assessments, is not publicly available.

Her defense raised concerns about Alissa’s mental health in the immediate aftermath of the March 2021 shooting.

Court documents responding to one of his evaluations in 2021 said he was tentatively diagnosed with an unspecified mental health condition that limited his ability to «converse meaningfully with others.»

Alissa was not in the courtroom on Friday. He is charged with manslaughter and attempted multiple manslaughter for endangering the lives of 26 other people. He has not yet been asked to plead guilty and his lawyers have not commented on the allegations.

These brief hearings are held periodically to see if the doctors believe that Alissa can understand the legal procedures and work with her attorneys to defend herself. Competition is a different legal issue than a plea of ​​not guilty by insanity, which involves whether someone’s mental health prevented them from understanding right from wrong when a crime was committed.

Alissa is accused of opening fire outside and inside a King Soopers store in the college town of Boulder, killing customers, workers and a police officer who rushed to stop the attack. Alissa, who lived in the nearby suburb of Arvada, surrendered after another officer shot and wounded him, authorities said.

Investigators have not revealed a possible motive. They said Alissa passed a background check to legally purchase a Ruger AR-556 pistol six days before the shooting.