Lanza killed himself and 27 others in 2010 . Gunman Adam Lanza report on shootings is 27 of pages long . Report discusses Connecticut State Police 's school work and his relationship with his parents .
Gunman Adam Lanza killed himself and 27 others in December 2012 . Connecticut State Police report on shootings is thousands of pages long . Report discusses Lanza 's school work and his relationship with his parents .