Firearms training unit detective Barbara J. Mattson, of the Connecticut State Police, holds up a Bushmaster AR-15 rifle, the same kind of gun Adam Lanza used in the Sandy Hook School shooting, during ...
The reason Adam Lanza was able to kill so many Sandy Hook Elementary School students and teachers so quickly more than two years ago was the weapon he used: A Bushmaster Model XM15-E2S semiautomatic ...