When we where discussing about what does a monument do with the space my example was the stone in a place where a cameraman was shot from a near by hill. I just found a video of that moment (1991). Btw I heard that there might be only to documentaries (including this) where a cameraman is killed during shooting.

Can't see the hill in the picture but anyway...
there are 5 of these kind around that hill, for each person for the same reason.