A New York Times report confirms that Mark Zuckerberg personally made the final decision to ban Infowars.
In an article entitled Facebook Banned Infowars. Now What?, Kevin Roose reveals how, "Late on Sunday, after returning to his hotel room on a trip away from home, Mark Zuckerberg made a decision he had hoped to avoid."
The report adds that the Facebook CEO "got personally engaged" and "discussed Infowars at length with other executives," while speculating that Jones may have wanted to get banned to get media attention.
Zuckerberg initially considered whether Infowars was being brigaded by partisan mobs mass reporting of posts (this undoubtedly happened, but only after CNN had engaged in an intense lobbying campaign to have Jones banned).
Zuckerberg decided to remove the Infowars page entirely, rather than just giving the page a strike, when he saw on the news that Apple had removed the Infowars podcast.