Good guy with a gun
Phrase in gun-rights debate / From Wikipedia, the free encyclopedia
A good guy with a gun, in American gun control debate, refers to the idea that the best way to prevent a mass shooting is with high accessibility of weapons to civilians and police willing to stop an attack. The phrase originates with Wayne LaPierre in 2012, who stated that "the only way to stop a bad guy with a gun is with a good guy with a gun."