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FBI Deputy Director Dan Bongino said Monday that investigators are probing whether Charlie Kirk’s alleged assassin acted alone or as part of a broader plot, while also revealing troubling signs that the suspect had been "taken over" by ideology leading up to the shooting.

Bongino told Fox News' "America’s Newsroom" that although one suspect is in custody, the bureau is "looking into" possible accomplices.

"If this was a larger effort, if there was any aiding and abetting, whether it be financial or someone who knew the specifics of it and failed to report that, we’re looking into that," he told Bill Hemmer Monday. "There’s not going to be a stone left unturned."

KASH PATEL'S FALSE START ON CHARLIE KIRK KILLER DRAWS SCRUT

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