See the shocking arsenal stockpiled inside Adam Lanza's lair

See the shocking weapons arsenal stockpiled inside Adam Lanza's lair. Lanza unleashed the deadly rampage at the Sandy Hook Elementary School in Newtown, Conn., in Dec. 2012.

This image contained in the "Appendix to Report on the Shootings at Sandy Hook Elementary School and 36 Yogananda St., Newtown, Connecticut On December 14, 2012" and released Monday, Nov. 25, 2013, by the Danbury, Conn., State’s Attorney shows a scene at 36 Yogananda St., where gunman Adam Lanza lived with his mother in Newtown, Conn. Lanza opened fire inside the school killing 20 first-graders and six educators before killing himself as police arrived. (AP Photo/Office of the Connecticut State's Attorney Judicial District of Danbury)

This image contained in the "Appendix to Report on the Shootings at Sandy Hook Elementary School and 36 Yogananda St., Newtown, Connecticut On December 14, 2012" and released Monday, Nov. 25, 2013, by the Danbury, Conn., State’s Attorney shows a scene at 36 Yogananda St., where gunman Adam Lanza lived with his mother in Newtown, Conn. Lanza opened fire inside the school killing 20 first-graders and six educators before killing himself as police arrived. (AP Photo/Office of the Connecticut State's Attorney Judicial District of Danbury)

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