Wayne LaPierre, the executive vice president of the National Rifle Association, would have been better advised to remain wherever he had been hiding after the Newtown, Conn., massacre, rather than appear at a news conference on Friday. No one seriously believed the N.R.A. when it said it would contribute something “meaningful” to the discussion about gun violence. The organization’s very existence is predicated on the nation being torn in half over guns. Still, we were stunned by Mr. LaPierre’s mendacious, delusional, almost deranged rant.

Mr. LaPierre looked wild-eyed at times as he said the killing was the fault of the media, songwriters and singers and the people who listen to them, movie and TV scriptwriters and the people who watch their work, advocates of gun control, video game makers and video game players.

The N.R.A., which devotes itself to destroying compromise on guns, is blameless. So are unscrupulous and unlicensed dealers who sell guns to criminals, and gun makers who bankroll Mr. LaPierre so he can help them peddle ever-more-lethal, ever-more-efficient products, and politicians who kill even modest controls over guns.

His solution to the proliferation of guns, including semiautomatic rifles designed to kill people as quickly as possible, is to put more guns in more places. Mr. LaPierre would put a police officer in every school and compel teachers and principals to become armed guards.