SYRACUSE, N.Y. — A former Cornell University student arrested for posting statements threatening violence against Jewish people on campus last fall after the start of the war in Gaza was sentenced Monday to 21 months in prison.

Patrick Dai, of suburban Rochester, New York, was accused by federal officials in October of posting anonymous threats to shoot and stab Jewish people on a Greek life forum. The threats came during a spike in antisemitic and anti-Muslim rhetoric related to the war…