Prosecutors on Monday formally charged graduate school dropoutwith first-degree murder for the July 20 massacre during a screening of "The Dark Knight Rises" in Aurora, Colo. that killed a dozen people and wounded 58 others.
James Holmes is charged with 24 counts of murder, two each for the 12 people killed, and 116 counts of attempted murder, two each for the 58 injured.
Holmes has also been charged with one count of possessing explosives, and one of use of a deadly weapon.
He appeared in court Monday with his hands and feet shackled, his face unshaven and still sporting unruly bright orange hair.
James Holmes appeared just as dazed as he did in his first court appearance last week, but at one point exchanged a few words with one of his attorneys in the packed courtroom.
The charges could put the 24-year-old former doctoral student in prison for the rest of his life if he is convicted.
He will next appear in court on August 9.
Holmes allegedly told his Colorado jailers that he does not know why he is behind bars. According to the Daily News, an employee of the Arapahoe County Detention Center said the jailers believe Holmes is faking amnesia.
More than 30 victims and their family members filled the seats of the county courtroom where they maintained a dignified silence through the nearly hour-long hearing.