The March 28 documents also provided details on items found at Lanza 's home , including three samurai swords , a newspaper article about the Northern Illinois University shooting , and a National Rifle Association certificate . The NRA denied that Adam Lanza or Nancy Lanza were members and reporters noted that the NRA site provides training certificate completion templates for courses offered by NRA Certified Instructors . A gun safe was found in a bedroom and investigators found more than 1,400 rounds of ammunition and other firearms . At home , Lanza had access to three more firearms : a .45 Henry rifle , a .30 Enfield rifle , and a .22 Marlin rifle . These were legally owned by Lanza 's mother who was described as a gun enthusiast . According to '' Time '' , authorities also found a photograph of Lanza holding a gun to his head at his home following his death
Northern Illinois University shooting
Northern Illinois University shooting
Sandy Hook Elementary School shooting