Police in Connecticut have unsealed key findings of their investigation into the shooting massacre at Newtown’s Sandy Hook Elementary School. The gunman, Adam Lanza, had a massive arsenal of weapons at home, including swords, knives and guns. Other findings at Lanza’s home included a newspaper clipping of another school shooting, several books on autism, a report card from when he attended Sandy Hook, and a certificate from the National Rifle Association bearing Lanza’s name. Lanza used 30-round magazines to fire 154 times at Sandy Hook, killing 26 people in less than five minutes. In a statement, Connecticut Gov. Dannel Malloy said the fact Lanza opted for the high-capacity magazines instead of the smaller ones he had at home underscores the need for an assault weapons ban.