In announcing the new charges, the authorities said that the student, Tim Piazza, had been given at least 18 drinks in 82 minutes at the Beta Theta Pi party in February.
The university’s president said the suspension, which affects all 55 fraternities and sororities, would stay in place until students committed to a “new normal.”
Louisiana State University said it was investigating the death of Maxwell Raymond Gruver, 18, after he was taken to a hospital from a fraternity.
A teacher confronted the student, Daniel Barrow, on Thursday after seeing him in an online video with a gun, the police said. Mr. Barrow was arrested.
The university released the earliest known recording of Kennedy this week, from an English class he was taking when he was 20.
The magazine settled with a University of Virginia administrator who had said the retracted November 2014 article portrayed her as the “chief villain.”