CENTENNIAL, Colo. — Families of the 12 people James Holmes killed and the scores he injured in a packed movie theater were relieved that jurors only needed 12 hours to reject the idea that he was legally insane when he opened fire.

Now the trial enters a new phase as the jury decides whether Holmes should die for his crimes.

Starting next week, jurors will hear testimony about Holmes’ mental illness and his childhood. Prosecutors may counter with even more heartbreaking accounts from victims, ranging from those Holmes maimed to the father of his youngest victim, a 6-year-old girl who died in the 2012 attack.

There was a muted, heartbroken sense of relief Thursday afternoon following Holmes’ conviction on 165 counts of murder, attempted murder and other charges. Victims wept and comforted one another in the courtroom during the hour-long recitation of each verdict, holding hands and nodding their heads with satisfaction when their loved one’s names were read.

“We’re all really happy he’s guilty, but we’re all really sad to be here,” said Katie Medley, whose husband, Caleb, uses a wheelchair after being shot in the head during the attack.