"In the weeks to come, there will be a bunch of news stories that will explain what happened and why it happened," O'Reilly told fans at a show on Saturday in Westbury, New York. "It's pretty grisly. It's pretty nasty. It has to do with far-left progressive organizations that are bent on destroying anybody with whom they disagree, including the president."
O'Reilly made the comments at the latest stop on "The Spin Stops Here Tour," a slate of pseudo-comedy performances where he blends his commentary with corny jokes.
O'Reilly has been doing the tour with conservative comedian Dennis Miller since 2011. They held a pair of performances in Westbury on Saturday, and the doubleheader marked the resumption of the tour after O'Reilly was fired from Fox News in April following revelations of settlements paid to multiple women who accused him of sexual harassment.
Fox News host Jesse Watters was scheduled to join the tour before the network, wary of its on-air talent appearing publicly with someone who had just been been ignominiously fired, quashed the arrangement.
That appeared to be news to at least some of those in attendance.
"Watters can't be here tonight, I'm sorry," O'Reilly said, drawing groans. "It's not his fault. Fox didn't want him to go."