Thanks PhilDragoo.
...Blakey & Co. indicated probable conspiracy with organized crime as the likely perpetrator.
That conclusion is correct. Carlos Marcello had been arrested and deported under his bogus Costa Rican passport/identity, and nearly died getting back from that jungle airstrip where Kennedy's people dumped him off down there. That event more than any other led to the assassinations of both Kennedy brothers.
Lane's stuff is just nuts, but he is good for some laughs. The CIA had been paying the mob to 'hit' Castro, but the mob realized early on that they'd never have the Cuban casinos back. They kept taking the money for work not performed, even after JFK and RFK ordered the efforts to assassinate Castro to stop. That was the means by which the mob was able to blackmail the CIA into silence.
When those photos of the actual assassin was shown to Helms, he knew who it was, but answered that he'd never seen the man before. The photos were taken outside the Soviet embassy in Mexico City; Oswald had been sent to Mexico City, told that he was there to cool off, so no one would think he was still in Dallas. The real reason was so the real assassin could tail him to get used to his movements, way he looked from different angles, way he walked, etc, so that he could identify him at a distance with certainty.
The first plan to eliminate Oswald was for the assassin to kill him at the scene after the police started firing at him after JFK was shot -- dead president, dead assassin, case closed. Instead, the echoes from the assassin's own gun (and maybe Oswald's as well) caused the cops to run up the infamous grassy knoll, thinking that the shots came from there. Oswald stood in the window as he'd been ordered to, but the assassin couldn't open fire. He waited as long as he felt he dared, then disassembled his rifle, taped the parts to his leg, put his pants back on, and with a pronounced limp left the County Records building and then the country.
The police never saw Oswald or figured out the diirection of his shots because of the architecture of Dealey Plaza. They went right up to that Grassy Knoll fence and around it, and found no smell, casings, or suspects behind it, because there never had been any.
The second plan for Oswald's demise never came off, and is only theoretical, but would have taken the form of someone who was waiting for his exit from the Book Depository, to follow him and kill him quietly somewhere; it's possible that the second plan didn't exist, or that it was supposed to happen that way but the operative didn't show up, or got spooked and took off, or that Oswald 'made' him and gave him the slip, or that the operative just never got the opportunity before Oswald's arrest. It wasn't as clean as the Dealey plan, but someone really wanted him dead.
Both Oswald and Ferrie worked for Carlos Marcello's mob lawyer, Ferrie was in court in St Louis the day of the assassination. Jack Ruby was another mobster, what a weird coincidence, he'd been run out of Chicago (I think it was), and was given the assignment to kill Oswald after the first two plans failed. For that matter, Johnny Roselli was scheduled to appear before the House Select Committee on Assassinations, didn't show up, and some days later what used to be Johnny Roselli was found inside an oil drum floating off Tampa (I think it was).