But can a conspiracy of more than a very few people be kept under wraps for a lifetime? I find it hard to believe that if there really was a conspiracy that nothing concrete has emerged in all these years.
for a more realistic view, see the interviews with LAPD people from the recent documentary on Bob Kenedy's assassination in LA.
it makes the case pretty clear, and show that people did talk. but that the good media, not wanting to promote conspiracy theories, silenced. The guy was pretty much boasting about his participation for decades and nobody cared.