"Holmes suffers from a severe mental illness and was in the throes of a psychotic episode when he committed the acts that resulted in the tragic loss of life and injuries," Holmes' lawyers wrote.
Holmes has pleaded not guilty by reason of insanity to 166 counts of murder, attempted murder and other offenses a plea that stops just short of a confession. But this week's motion is the first time Holmes' attorneys have explicitly said he committed the shootings, The Denver Post reported (http://bit.ly/1dkEkSV).
Prosecutors are seeking the death penalty.
Judge Carlos Samour rejected the motion for Holmes to be unrestrained during his trial, saying it was "not appropriate." Instead, Holmes is to be tethered to the floor.
"The Court chose the least restrictive form of restraint available and the one that could be hidden from the jury's view," Samour wrote.
In a separate filing, Holmes' lawyers blasted the judge for meeting outside of the defense's presence with the Arapahoe County Sheriff's department about courtroom security around Holmes.
Samour responded that it is within his powers to arrange for courtroom security.