The Sandy Hook Elementary School shooting occurred on December 14, 2012, in Newtown, Connecticut, United States, when 20-year-old Adam Lanza fatally shot 20 children between six and seven years old, as well as six adult staff members. Before driving to the school, he shot and killed his mother at their Newtown home. As first responders arrived at the school, Lanza committed suicide by shooting himself in the head.
The incident was the deadliest mass shooting at either a high school or grade school in U.S. history and the fourth-deadliest mass shooting by a single person in U.S. history. The shooting prompted renewed debate about gun control in the United States, including proposals to make the background-check system universal, and for new federal and state gun legislation banning the sale and manufacture of certain types of semi-automatic firearms and magazines with more than ten rounds of ammunition.
A November 2013 report issued by the Connecticut State Attorney's office concluded that Lanza acted alone and planned his actions, but provided no indication why he did so, or why he targeted the school. A report issued by the Office of the Child Advocate in November 2014 said that Lanza had Asperger's syndrome and as a teenager suffered from depression, anxiety and obsessive-compulsive disorder, but concluded that they had "neither caused nor led to his murderous acts." The report went on to say, "his severe and deteriorating internalized mental health problems... combined with an atypical preoccupation with violence... (and) access to
deadly weapons... proved a recipe for mass murder". View More On Wikipedia.org