"JULY 20, 2012 James E. Holmes, 24, killed 12 people and wounded 70 at a theater in Aurora, Colo., using a Smith & Wesson semiautomatic rifle, a Remington shotgun and a Glock .40-caliber semiautomatic pistol. MARCH 2012 Over four months, Mr. Holmes legally bought more than 3,000 rounds of ammunition for handguns, 3,000 rounds for a semiautomatic rifle and 350 shells for a 12-gauge shotgun, all over the Internet. MAY 2012 He was seeing a psychiatrist and in the process of withdrawing from a graduate program at the University of Colorado Denver’s Anschutz Medical Campus. MAY 2012 In the 60 days before the shooting, he bought four guns legally at local gun shops. Seeing a psychiatrist, even for a serious mental illness, would not disqualify him from buying a gun. JULY 20, 2012 He opened fire in the theater, killing 12 people."