In 2002, Keene’s son David Michael Keene was driving on the George Washington Memorial Parkway when, in a road-rage incident, he fired a handgun at another motorist. He was sentenced to ten years in prison for “using, brandishing, and discharging a firearm in a crime of violence.” I asked Keene if this private tragedy had left him uncertain about what the N.R.A. had wrought. He said no: “You break the law, you pay the price.”