But they do get fleshed out. Take, for instance, “Kennedy, Sinatra, and the Mafia,” which combines well-worn assassination theories with folklore that will be familiar to anyone who has seen ...

Sinatra became integral to the Kennedy presidential campaign - but his Mafia connections soon made Sinatra a political liability, requiring Kennedy to push him aside.

But there may be a much deeper connection between the Kennedys and the mob, and legendary entertainer Frank Sinatra reportedly served as a key intermediary and whipping boy in one case.

It's 1972 and the Mafia crime families are at war ... hang out playing cards at a gambling den known as the "Sinatra Club" owned by Crazy Salvatore Polisi, the narrator of our story.

With his mafia wiseguy links and access to entertainment industry star power, Frank Sinatra helped John F Kennedy into the White House in 1960. But it all came to a bitter end.