the source is a bit suspect, but at least interesting:

 

http://www.infowars.com/articles/us/jfk_hunt_last_confessions_rolling_stone.htm (dont click, I copied the relevant parts)

 

E. Howard scribbled the initials "LBJ," standing for Kennedy's ambitious vice president, Lyndon Johnson. Under "LBJ," connected by a line, he wrote the name Cord Meyer. Meyer was a CIA agent whose wife had an affair with JFK; later she was murdered, a case that's never been solved. Next his father connected to Meyer's name the name Bill Harvey, another CIA agent; also connected to Meyer's name was the name David Morales, yet another CIA man and a well-known, particularly vicious black-op specialist. And then his father connected to Morales' name, with a line, the framed words "French Gunman Grassy Knoll."

So there it was, according to E. Howard Hunt. LBJ had Kennedy killed. It had long been speculated upon. But now E. Howard was saying that's the way it was. And that Lee Harvey Oswald wasn't the only shooter in Dallas. There was also, on the grassy knoll, a French gunman, presumably the Corsican Mafia assassin Lucien Sarti, who has figured prominently in other assassination theories. ...

Later that week, E. Howard also gave Saint two sheets of paper that contained a fuller narrative. It starts out with LBJ again, connecting him to Cord Meyer, then goes on: "Cord Meyer discusses a plot with [David Atlee] Phillips who brings in Wm. Harvey and Antonio Veciana. He meets with Oswald in Mexico City. . . . Then Veciana meets w/ Frank Sturgis in Miami and enlists David Morales in anticipation of killing JFK there. But LBJ changes itinerary to Dallas, citing personal reasons."

In the next few paragraphs, E. Howard goes on to describe the extent of his own involvement. It revolves around a meeting he claims he attended, in 1963, with Morales and Sturgis. It takes place in a Miami hotel room. Here's what happens:

Morales leaves the room, at which point Sturgis makes reference to a "Big Event" and asks E. Howard, "Are you with us?"

E. Howard asks Sturgis what he's talking about.

Sturgis says, "Killing JFK."

E. Howard, "incredulous," says to Sturgis, "You seem to have everything you need. Why do you need me?" In the handwritten narrative, Sturgis' response is unclear, though what E. Howard says to Sturgis next isn't: He says he won't "get involved in anything involving Bill Harvey, who is an alcoholic psycho."

After that, the meeting ends. E. Howard goes back to his "normal" life and "like the rest of the country . . . is stunned by JFK's death and realizes how lucky he is not to have had a direct role."