Thursday Arapahoe County District Judge William Sylvester ordered James Holmes to appear at a Friday arraignment hearing for the slayings that took place at Century 16 theater.
The district judge said that "The proof is evident or the presumption is great that (Holmes) committed the crimes charged," which consists of 160 felony charges for first-degree and attempted murder.
The decision handed down by the judge followed three days of testimony by police officers who responded to the scene and a slew of evidence which included photos and videos according to USA Today.
James Holmes had photographed himself and the theater, as well as his arsenal collection, prior to the Aurora, Colo. massacre. Those photos were introduced in court, providing the public with a first glimpse into the advanced planning that had occurred.
On Friday the suspect will hear the charges read to him formally and will enter a guilty or not guilty response to them publicly. It was expected that his defense attorney would seek to cut a plea deal if the court found Holmes was to stand trial.
An insanity defense was also speculated to be the route taken by the legal counsel for the defendant if the case moves to the trial stage.
James Holmes is alleged to have killed 12 people and injured 70 during the mass shooting at a Century 16 theater per the Christian Science Monitor, and he is currently still incarcerated and unable to be released on bond.