I'm recommending the book
Destructive Generation: Second Thoughts About the Sixties by David Horowitz and Peter Collier. It's a chilling document, especially because---unlike in 1989, when the book was first written---it's become more and more clear that the left's long Gramscian march through our institutions has been largely successful.
The book's first chapter---the story of
Fay Stender, is a tale of such sadness it's almost unbearable. Stender was an idealistic leftist lawyer who defended, and had affairs with, black prisoners such as Huey Newton and "Soledad Brother" George Jackson, and was later shot by another black con after her supposed "betrayal" of Jackson.
Stender's life trajectory wasn't just sad, of course. It was offensive and outrageous and anger-provoking, and not just for what was done to her but for her own role in it. But it was
also sad. It was sad that Stender was so naive in the first place as to dedicate her life to defending a group of socipathic con men who happened to talk a good line of racial victimization, sad that she deceived herself so greatly in her perverted idealism.
It was sad that, when she finally realized who and what they really were, it was too late to save herself (or others) from their revenge although she tried her best. Sad (although ultimately good, if it's truth you're after) that she lost her illusions even before her former buddies managed to get her, and sad that, prior to their destroying her physically, she had realized her life's work was a sham and a betrayal of the principles she had thought she was defending.
Sad and ironic that, at the trial of the man who had shot her five times and left her in horrific unremitting pain and paralyzed from the waist down as well as handicapped in the use of her arms, his defense (unsuccessful, at least) was based on the sorts of arguments she had formerly used to defend other black activist criminals.
You might say that Stender got what she deserved, but I see her story as tragic despite (or perhaps because of?) her own role in her destruction and the destruction of others.