Reply #83: Great! Thank you. Here's the excerpt

[RufusTFirefly]

...
I was surprised to hear O'Donnell say that he was sure he had heard two shots that came from behind the fence.
"That's not what you told the Warren Commission," I said.
"You're right," he replied. "I told the FBI what I had heard, but they said it couldn't have happened that way and that I must have been imagining things. So I testified the way they wanted me to. I just didn't want to stir up any more pain and trouble for the family."
...
Dave Powers was with us at dinner that night, and his recollection of the shots was the same as O'Donnell's. Kenny O'Donnell is no longer alive, but during the writing of this book I checked with Dave Powers. As they say in the news business, he stands by his story.
...

The snipping wasn't deceptive. I simply truncated the excerpt so as not to violate any copyright. The whole excerpt is reprinted here.

By the way, this excerpt brings up a crucial point about the cover-up that is frequently overlooked. Quite a few people kept quiet for reasons they felt were noble. Some claimed to be sparing the Kennedy family for further pain. Remember, also, that this was the midst of the Cold War. There was a deliberate effort to implicate either Cuba or the Soviets in the plot. Assuming you bought this lie, consider its ramifications. Some may have mistakenly felt that accepting the idea of a lone nut instead of a calculated plot by an enemy country would literally save the world from nuclear annihilation. In addition, witnesses who were members of the military felt they were "following orders" by keeping silent.

Of course, there were almost certainly others who feared that telling the truth would endanger either their reputations or their lives. Others, like Abraham Bolden and Ralph Yates, were imprisoned or institutionalized when they tried to be whistle blowers.

The point is that skeptics of a JFK conspiracy frequently zero in on the implausibility of so many people keeping silent. But when you combine all the possible motivations for silence, it's entirely plausible.