Those comments drew an immediate motion for a mistrial from Holmes’ defense team, but the judge denied the request.
Aurora Theater Shooting
The notebook includes detailed plans to attack a movie theater, as well as first-person accounts of Holmes' struggles with mental health issues.
Attorneys on both sides say the notebook gives insight into his state of mind but disagree on its meaning.
Judge Carlos Samour asked the jurors about the Boston case on Monday, the start of the fourth week in the theater shooting trial.
With a gag order in place since just after the attack, observers couldn't find out much about the case. The trial has changed that.
There were so many shotgun shells, ammo magazines, and bloodied pieces of clothing that investigators ran out of evidence markers.
James Holmes rigged his apartment to explode as a diversion to draw law enforcement away from the theater shooting.
In court Wednesday, testimony focused on the gunman’s brief academic career at the University of Colorado.
His lawyers say they concede he’s the shooter. And they argued all this gruesome evidence will unfairly turn the jury against him.
"There was gas in the air, tear gas, you might call it. Hit you immediately. Teared up, mucus formed, burned your face, burned your skin," Sgt. Gerald Jonsgaard said.