A Colorado jury found James Holmes guilty of first-degree murder, rejecting Holmes’ insanity plea.

In July of 2012, Holmes, now 27, entered a movie theater in Aurora, Colorado, walked into a sold out midnight screening of The Dark Knight Rises, tossed a tear gas canister into the crowd and began spraying the audience with bullets. He murdered 12 moviegoers, and injured 70 others. He had also placed explosives in his apartment in an apparent effort to injure and kill law enforcement.

The penalty phase of the trial is set to begin on Monday.

Photo: REUTERS/R.J. Sangosti/Pool