Mr. Lukens seems unfamiliar with history. I noticed years ago that many/most of the JFK assassination conspiracy books blamed LBJ.
It is well known that LBJ disliked the Kennedy’s and had the most to gain from the assassination. As POTUS, he would be in an ideal position to suppress or manipulate the investigation. The bad karma no doubt haunted Johnson’s presidency. That plus guilt played a role in his decision not to seek another term. I just always though the LBJ hypothesis mad the most sense, but have been too busy living my life to get into it deeply.
LBJ hinted that Castro was behing the assassination. Maybe he did USA a favor?