this really shocked me. He must have been filled with all sorts of mixed emotions to not even say goodbye to the team. (or he did, and for whatever reason that's not public ..).

  >> The day before, Markus had put in his last day 
  at work. Several others were in the office as he stood 
  up to leave. He hesitated, not sure how to say goodbye.
  So he decided not to. He made his way past the desks
  outside where his employees sat working, past the shelves 
  stacked with awards and prizes. He took a left out the 
  door, went down a small stairwell, and stepped out of the 
  building.