Roger Stone’s book about LBJ makes a lot of sense. It was a combination of a butt hurt CIA over Cuba. The mafia over Cuba and broken promises old joe made to get him elected. LBJ’s connections with the mafia, cia, big oil and his megalomaniacal agenda and hate. Kennedy was going to make a run at cutting the oil depletion allowance. He and Bobby were hitting the mafia hard. LBJ was in the position to cover it up using federal resources.