Jurors reached a verdict Monday afternoon in the Boulder grocery store shooting trial. The jury found Ahmad Al Aliwi Alissa guilty of shooting and killing 10 people at the South Table Mesa King Soopers on March 22, 2021, in addition to guilty verdicts on several other charges.

Jurors had to determine whether Alissa, the gunman who admitted to the shooting, was legally sane at the time of the attack.

The jury also found the gunman guilty on 38 counts of attempted first-degree murder, guilty of one count of assault in the first degree and guilty on six counts of possession of a large-capacity magazine during the commission of a felony.

Alissa was arrested at the scene.

Testimony for the prosecution included witnesses who were in the store at the time of the shooting and police officers who were first on scene after reports of the shooting. That witness testimony included one woman who said she heard the gunman saying, "This is fun" while shooting people inside the store.

Defense attorneys maintained that Alissa was suffering from a mental illness and didn't know right from wrong on the day of the shooting.

Opening statements in the trial began Sept. 5 after several years of delays due to the court working to determine whether the gunman was competent to stand trial.

Alissa pleaded not guilty by reason of insanity to all of the charges including 10 counts of first-degree murder.