Superb film, only one reservation
I watched the film when it was released, back in 75( as a teenager )and it shocked me senseless. Well one scene did. You know the one.
Although I found it utterly compelling and it is still, to this day, one of my favourite films, there's something not quite right.
What I am more reserved about is the quickness in whitch the hero reacts to the events.
I would have made him act ,grief striken and not knowing where to go, wandering into the woods like a lost soul, then leaning against a tree, crying and prostrated.
After a while, he comes back at night and takes shelter in one of the abandoned houses, finds a bed and collapses from exhaustion due to shock.
In the morning, he wakes up, remembers the old rifle put away in the attic and sets up on revenge.
Would have added 3 to 5 mn to the original lenght. No big deal but a huge difference in making te story plausible.