A long read, and well researched. I only gave it four starts instead of five because I found it repetitive at times. This book answers many questions I had about JFK's assassination, covers material I didn't know about, and I believe pretty much sums up what really happened.
If you're interested in the topic, and want to do a deep dive into the material I highly recommend the book. I'll try to sum up the major parts here. After the Bay of Pigs fiasco, the CIA continued with their plots on trying to get assassinate Castro. Bobby Kennedy, and his associates in the Dept. of Defense, and some of the national intelligence agencies worked with several Cuban exile groups to stage a coup to get rid of Castro in early December of 1963. Many of the exile leaders had been associates of Castro, and for various reasons had fallen out. A key figure in the coup was the head of the Cuban military. Meanwhile, JFK through intermediaries was trying to work with Castro to get the Russians out of Cuba.
At the same time Bobby Kennedy and his justice department were prosecuting Jimmy Hoffa, head of the Teamsters Union for using their pension fund for helping finance various organized crime projects. Kennedy is also targeting various organized crime leaders including Carlos Marcello (Dallas area boss) and Santo Trafficante (Miami/New Orleans boss). The Chicago crime family wasn't too happy with the Kennedy's either. Marcello and Trafficante lost significant businesses in Cuba when Castro took over, and continued having contacts there. As the book unfolds, the reader discovers that several key people have multiple roles. One of the most notable to me was Richard Cain, the head detective of the Cook County Sheriff's Dept. in Illinois. Cain was also a member of the Giancana crime family, and a CIA asset. Another key participant was the head of the CIA station in Miami, who had Cuban and organized crime contacts as well. These are just some of the associations to show how convoluted this whole thing became.
Basically, it comes down to this. Hoffa wanted Bobby dead. Organized crime wanted Bobby dead. The cooler heads in organized crime decided killing Bobby, would only infuriate JFK and increase prosecution. Killing JFK, would stop Bobby. Key players were used to co-opt and infiltrate Bobby's Cuba coup plan, and re-aim it at JFK. They felt Govt sources would help cover up the assassination because they didn't want their coup/Castro assassination plan to go public. Plus key govt office holders would be implicated in this Cuba plan. The govt also didn't want their contact in Castro's military to be identified, because that would potentially ruin other plans and relationships. If this sounds complicated, it certainly is! It also explains why some of this information still isn't public to this day.
I wasn't aware that the Dallas killing was actually the third attempt. The original plan was to Kill JFK in Chicago at the beginning of November. Kennedy's Chicago trip was aborted when threats were leaked to the Secret Service. The second plan was to kill Kennedy in Tampa the week before Dallas. Again threats were leaked, but Kennedy felt he had to make the trip to bolster the situation in Cuba through a speech he gave. Security was heavily increased, deterring an actual attempt.
Dallas--After reading this it's obvious Oswald never fired the rifle. The book goes into great detail how Oswald was an asset of Naval Intelligence, and the CIA. He was a poor marksman, barely passing the basic Marine shooting requirement. The rifle he supposedly used was in very poor condition. He was always supposed to be the fall guy. Part of the Cuba plot, was to get Oswald into Cuba and have him be the fall guy for Castro's assassination since Oswald had ties to Russia. Eye witnesses in the motorcade believe that the initial shots came from the grassy knoll. In fact that's where law enforcement first converged. Several witnesses claim encounters with 'secret service' agents, but all agents accompanied JFK to the hospital. Eye witness accounts of Oswald in the depository lunchroom didn't give him enough time to assemble the rifle, and set up a snipers nest. Shooters were in both locations.
Jack Ruby had more connections to organized crime and Cuba than I realized. He worked for Al Capone in Chicago, later moved on to working in unions and becoming an associate of Jimmy Hoffa. Later on he was running guns to Cuba, both for Castro, and later for the exiles. He certainly had associates in the Dallas PD, as well as the Marcello crime family. The book asserts that it was his responsibility to have Oswald silenced either by 'fake' or real law enforcement officers. When that failed he had to do the job himself.
Side note--I often read multiple books at the same time, not necessarily associated with each other. Along with this book, I started reading 'The Irishman' a narrative interview with Frank Sheeran who was a union associate and friend of Jimmy Hoffa, and admits that he is the person that killed him along with an organized crime group. Hoffa had served time in prison, and upon his release he wanted to regain the presidency of the Teamsters Union, and was boasting that he 'knew things', implying that he would divulge information implicating others if not elected. Organized crime bosses took this as a threat that he would divulge organized crime's role in the Kennedy killing and this is why Hoffa was 'disappeared'. Again much more detail in the book. Tried to put this in a nutshell here, but I know there's a lot of cracks! Read the book, and see for yourself.