There was a marketing professor at SIU-Carbondale. He used to arrange foreign tours – mostly to Europe and used to take his students with him.
One day he was teaching in the classroom. A stranger entered the room, and in front of all students watching, took out a gun and shot the professor dead. It was in my first year.
Later I heard that the murder was drug-related business deal gone bad.
We forgot about that incident quickly, I immediately, and Carbondale got a new marketing professor.