Disclaimer: This is not your usual fact-filled A-level Uhub reporting, but it doesn't seem to be anywhere else, and it's what I've got.
My daughter was on an American flight from Logan to Chicago this morning. They were ready to take off, when a guy in the same row, but on the other side of the aisle from her got all "non-compliant," so the plane returned to the gate, and he was removed. She thinks he was taking pictures of flight attendants or passengers, and that he had a complicated name. Another passenger also left the plane, apparently voluntarily. Not much beyond that. After an hour delay, the plane departed.