The most recent national day of mourning before Thursday occurred on Dec. 5, 2018, following the death of George H.W. Bush.
Since the Rooney Rule was instituted in 2003, non-white coaches have been more than three times as likely to be fired after one season than white coaches.
Brian Matusz, a former major league pitcher known for a long stint with the Baltimore Orioles, died Tuesday. He was 37.