article_snippet: Holmes, 27, is charged as the sole gunman who stormed a crowded movie theater at a midnight showing of "The Dark Knight Rises" in Aurora, Colorado, and opened fire, killing 12 people and wounding 58 more in July 2012.
article_snippet: Holmes, a one-time neuroscience doctoral student, faces 166 counts, including murder and attempted murder charges.
article_snippet: Holmes has pleaded not guilty by reason of insanity.
article_snippet: If convicted of the most serious charges, Holmes could face a death sentence.
article_snippet: Prosecutors have charged in court that Holmes "intended to kill them all," referring to patrons in the crowded cinema watching the Batman film "The Dark Knight Rises.
article_snippet: Holmes colored Holmes hair a comic-book red and told police Holmes was "The Joker" upon arrest after the mass killing.
article_snippet: Holmes was heavily armed and "dressed head-to-toe in protective gear," authorities said.
article_snippet: Holmes wore black contact lenses to conceal Holmes eyes.
article_snippet: Holmes AR-15 jammed during the shooting, police said, and police arrested Holmes in the parking lot.
highlights_snippet: James Holmes, 27, faces 166 counts, including murder and attempted murder charges.