Jury selection began Monday in the long-delayed trial for the man charged with killing 10 people in the 2021 mass shooting at a King Soopers grocery store in Boulder. Ahmad Al Aliwi Alissa, 25, is charged with 10 counts of first-degree murder in the attack at the Table Mesa store, as well as more than 100 other charges. He pleaded not guilty by reason of insanity, meaning that his attorneys do not contest that he carried out the mass shooting but say he should not be held legally responsible because he was so mentally ill at the time of the killings that he could not tell right from wrong. The trial will focus on Alissa’s mental state at the time of the attack, rather than whether or not he carried out the mass shooting. Alissa’s attorneys argued in a hearing earlier this month that his comments to police officers in the chaotic moments after the killings should not be allowed as evidence in the jury trial because he had not been advised of his right to remain silent. Boulder County District Court Chief Judge Ingrid Bakke ruled against the defense in an order last week, finding that Alissa’s comments were voluntary and not coerced by police officers. Related Articles Courts | Judge weighs whether jury in Boulder King Soopers shooting case should hear suspect’s comments after attack Courts | Boulder King Soopers shooting suspect pleads not guilty by reason of insanity Courts | Judge rules King Soopers shooting suspect is competent to stand trial Courts | 58 minutes of terror: How the Boulder King Soopers shooting unfolded Defense attorneys had also argued that jurors should not hear about Alissa’s long road to becoming competent to stand trial, and Bakke agreed, ruling that testimony about Alissa’s years of mental illness after the attack — his competency — do not factor into whether he was insane at the time of the attack.