Conservative writer John Podhoretz deleted his Twitter account Wednesday after tweeting a joke about neutron bombing a journalism school. He apologized the following the day.

“Talia Lavin and Lauren Duca teaching at NYU J school is the best argument yet that J Schools should be neutron bombed and their buildings given to Rick Singer for no show side door people,” Podhoretz tweeted Wednesday shortly before deleting his account.

On Thursday, writing in Commentary, of which he is the editor, Podhoretz apologized to Lavin and Duca.

“On Wednesday, I wrote an aggressive and rude satirical tweet involving a neutron bomb, the NYU Journalism School, journalism schools in general, and two writers,” he said in part. “I regret my attacks on Lauren Duca and Talia Lavin, which were unprovoked and therefore entirely unseemly. I wholeheartedly apologize to them.”

Lavin said she didn’t accept the apology “of a man who will neither recognize nor atone for his rank, abusive misogyny. Stay gone, Podhoretz.”

Duca appeared to feel similarly.

If I was a superhero, my power would be making assholes so mad they can’t think straight 🤪 — Lauren Duca (@laurenduca) March 21, 2019