From the time it happened, I sensed sumtin' wasn't right about the Rich murder.
I wonder who he was with in the hours (very late) before the murder?
If it was a robbery, wouldn't the robbers have told him to hand things over? That would imply a face-to-face confrontation (not shot in the back).
If it was intended to be a "kill first, then take" robbery, why didn't they take anything?
It weren't no robbery -- not even one "gone wrong".
It was something else.
What was it?
Remember how strange the initial reports of the Watergate burlary were, back in 1972?