But footage taken by an undercover liberal activist in May and described on Monday by the Portland Mercury showed Ngo witnessing activists from the far-right group Patriot Prayer planning a violent confrontation at a bar associated with left-wing activists. Ngo never reported on what he had seen the Patriot Prayer members planning, and some of the people involved in the attack at the bar now face felony riot charges.

Hours after the Portland Mercury story ran on Monday, Ngo removed his Quillette job from his Twitter profile. Shortly after that, Ngo’s name disappeared from the masthead at Quillette, a self-described “platform for free thought” that has become a hub for the right-wing Intellectual Dark Web movement.

Ngo didn’t respond to requests for comment.

Quillette editor-in-chief Claire Lehmann insisted in emails to The Daily Beast that Ngo’s exit had nothing to do with the Portland Mercury story or the undercover footage that began to circulate on Twitter last week, saying instead that Ngo left the site weeks earlier but that the move was only made public on Monday.