It's very interesting to me that the Leftists on Twitter are saying the same thing (but even uglier). I never met HK (I'm still young-ish), but I have known people who worked "very closely with him" during the years that it mattered, and nary a negative word about him passed their lips.
There was no conservative counterweight to the left-leaning media in the late-60's/early 70s, so I wonder if people realize that their opinion of him *may* have been tainted by irresponsible journalism. I'm not making a statement about HK, I'm making a statement about the media.