James Holmes, 24, is being represented by public defenders Tamara Brady and Daniel King. He was advised by his lawyers not to speak at today's arraignment hearing.
District Chief Judge William Sylvester said that given the nature of the charges, Holmes would be held at a jail in Centennial, Colorado without bail.
The judge explained that there was probable cause to try Holmes with first degree murder, a class one felony. The attack on Friday left 12 people dead and 58 wounded.
Sources have claimed that Holmes could face the death penalty should he be found guilty of the charges.
Holmes will return to court a week today (Monday, July 30) at 9.30am.
Sylvester also announced a protection order banning Holmes from any contact with witnesses and victims of the shooting.
Watch footage of James Holmes in court below: