It's sad thing indeed. There is much to be learned form Henri Cartier Bresson's work...
It reminds me of another great french photographer, Pierre Fatumbi Verger (Fatumbi is an afro-Brasilian name he took up in Brazil).
Both men took photographs of life as they saw it, and both did it largely for their own purposes. Both used one camera their whole lives (Bresson a leica, Verger a Rolleiflex) and none were limited by it. Both photographed in the same period (from the 30's on), and in their way redefined photography (though Bresson is much more recognized than Verger). Both set standarts that few photographers meet.
Both passed away, largely inactive in photography throughout their late years.
Lot's to think about