It was sent to me anonymously. You can judge for yourself by watching it here.
My immediate thoughts: Mac obviously told Van Drunen he was coming so it should not have been a surprise. Seems to me he hit him straight on, but you could certainly debate that until the cows come home. I can understand why the league reacted the way it did. Still do not know if anything led up to this. Maybe nothing. I trust that the league did its best to find out.