When "Mafia Kingfish" by John H Davis came out, I read this book. I was swayed by Davis' argument that Marcello was deeply involved with the Murder of JFK. I still feel that way, but do not believe that he was as involved as A. Dulles, R. Bissell, T. Barnes, H.Hunt, D. Phillips and D Morales (see page 261 of " The Devil's Chessboard" by David Talbot (the hardcopy version)).