Raymond Smullyan has died
When I was an undergraduate I met Raymond at a math conference in Minnesota.  We talked about logic, religion, and philosophy at the reception the first night.  The next morning he sees me and runs over to me.  He said,"I invented a new religion for you last night.  God has a number in mind.  If the sum total of all good acts minus the sum total of all bad acts exceeds this number then everyone goes to heaven.  Otherwise, everyone goes to hell.  Imagine then.  Something you do could send everyone to hell."I'm sad to hear of his passing.