Official investigation: Sandy Hook shooter's motives unknown

Originally published on November 26, 2013 Authorities have released a summarized report of an official investigation into the Sandy Hook Elementary School shooting that took place on Dec. 14, 2012. The 48-page summary that was released to the public was shortened from a report that ran into thousands of pages. However, authorities say the motive of the shooter, 20-year-old Adam Lanza, remains unknown. According to the report, Lanza first killed his mother with .22-caliber rifle at close range as she lay in bed the morning of Dec. 14. He then drove to Sandy Hook Elementary School in a 2010 Honda Civic, parking next to a no parking zone outside of school. Officials later found a Izhmash Saiga-12, 12 gauge semi-automatic shotgun in the vehicle. Lanza was armed with a Bushmaster XM15-E2S, a Glock 10 mm handgun and a Sig Sauer 9 mm pistol when he arrived at the school at around 9:30 a.m. He was also carrying 30-round magazines for the Bushmaster. When he found the doors were locked, he shot through the glass window to the right of the front lobby doors. In the north hallway, Lanza shot and killed school principal Dawn Hochsprung and school psychologist Mary Sherlach. He also fired upon two other staff members in the hallway, who survived. The shooter then went into the main office, but apparently did not see the staff who were hiding inside, and returned to the hallway before entering first grade classrooms 8 and 10. It is unknown which order he entered the rooms. While there, Lanza opened fire on teachers and students, killing four teachers and 20 children. Police received a 911 call at 9:35 a.m, and the first police officer arrived on the scene outside of school at about 9:39 a.m. A minute later, Lanza took his own life with a single shot from a Glock 20, 10 mm pistol in classroom 10. The entire event took place in under 11 minutes. ----------------------------------------­­---------------------------------------­-­---------------- Next Animation Studio’s News Direct service provides daily, high-quality, informative 3D news animations that fill in for missing footage and help viewers understand breaking news stories or in-depth features on science, technology, and health. Sign up for a free trial of News Direct's news animations at http://newsdirect.nextanimationstudio.com/trial/ To subscribe to News Direct or for more info, please visit: http://newsdirect.nextanimationstudio.com