And even if literally it was a lone bullet, a lone gunman (I'm not saying it is, I haven't personally been convinced, and I'm not the "IT CAN ONLY BE THIS WAY" type of guy anyway), I just don't believe that Oswald acted on his own, without support, without perhaps manipulation. . . .
It doesn't ultimately matter I think. The sad thing in my mind's eye is that there were many important men who were silenced during a span of some few years around this time. And it's awful to think it happened (happens) here. But it's reality, human reality, American reality. Disheartening reality.