The man who killed 10 people in a mass shooting at a Colorado grocery store in 2021 was convicted on Monday of first-degree murder and sentenced to life in prison without the possibility of parole.

Ahmad Al Aliwi Alissa was convicted by a jury of 10 counts of murder at a Colorado supermarket. His defense team had argued he was mentally ill.

The jury trial hinged not on whether Ahmad Al Alissa opened fire but whether the mentally ill man understood the difference between right and wrong.

After two weeks of testimony from survivors, forensic mental health professionals and even the gunman's family, a Boulder jury on Monday reached a verdict in the case of Ahmad Alissa,

A man who killed 10 people at a Colorado supermarket has been found guilty of murder in the 2021 attack, becoming the latest person to fail in an attempt to be acquitted by reason of insanity. Jurors found Ahmad Alissa guilty on Monday,

The jury trial hinged not on whether Ahmad Al Alissa opened fire but whether the mentally ill man understood the difference between right and wrong.

A Colorado jury on Monday found Ahmad Al Aliwi Alissa guilty on all counts in the March 2021 mass shooting at a King Soopers supermarket in Boulder County that killed 10 people.

Ahmad Alissa was convicted on charges that included 10 counts of first-degree murder and 38 counts of attempted murder.