The man accused of shooting 12 people dead and injuring dozens more during a midnight screening of The Dark Knight Rises in colorado last year will be anchored to the floor during his trial.
A judge ruled that because James Holmes had been charged with violent crimes he should be restrained.
Holmes will wear under his clothes a harness that will be fitted to the floor.
His lawyers had argued that shackles would make him look like a criminal to the jurors but the judge said jurors would not see the harness.
Holmes has pleaded not guilty by reason of insanity to murder and attempted murder charges.
Prosecutors are seeking the death penalty.
The former neuroscience doctoral student is charged with 24 counts of first-degree murder and 140 counts of attempted murder stemming from the July 20 shooting spree at the opening of The Dark Knight Rises in the Denver suburb of Aurora.
In addition to the 12 people who died, 58 others were wounded by gunfire and a dozen more suffered other injuries.
Owner orders dog to attack neighbour (graphic content)