Among the throng of Columbia University student protesters gathered outside Hamilton Hall on campus early Tuesday morning was a gray-haired woman in her 60s. In a video captured by The New York Times, the protesters can be seen trying to push their way toward the building as the woman — decades older than the crowd — pleads with two young counterprotesters trying to block them from barricading the occupied building. “This is ridiculous,” the woman says, as the men stand with their backs against the doors, apparently trying to keep protesters away from the building. “We’re trying to end a genocide in Gaza.”The woman at the center of this encounter on the night protesters stormed and then occupied the building was Lisa Fithian, a longtime activist and trainer for left-wing protesters whom the Police Department would later publicly describe as a “confirmed professional agitator.”

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Persons: —, “ We’re, Lisa Fithian, ” Organizations: Columbia University, Hamilton, The New York Times, Police Department Locations: Gaza