OK, you might have heard about a recent book called "Bobby and Jackie: A Love Story." Complete and utter ASB BS. I highly doubt that a devout Catholic with 11 kids would do something near-incestuous. Often Kennedy family books are divided into what I call "hate-mailers/conspiracists" and "propagandists", but there's a lot in between that's excellent reading. It depends how much time you want to devote to this.
To get back to RFK and Jackie, he helped her find solace during 1964, and acted as head of the family for the rest of his OTL life, much as Ted would do four years later. Of course, your depressing music is ironic, because JFK was in the same situation upon learning of Kathleen's death in a plane crash in '48.
I have never heard of the book and I never meant to suggest the Jackie and Robert were having an affair. I've never thought the two were romantically involved. I always saw the two as friends and nothing more. In what I saw of Robert, he didn't seem like a man who would commit suicide.
I have been considering having conspiracy theories regarding the assassination (above) gaining more ground in this timeline due to the sheer unlikeliness of the shot. I am imagining some groups believing that the US government had been infiltrated by hostile forces.
I was also going to have the Browns vs. Cowboys football match erupt in violence.