John “Zip” Connolly is apparently one of those hoodlums who cares what his obituary says about him after he’s dead and gone. At age 82, the infamous ex-FBI agent seems obsessed with clearing at least one indelible stain off his remarkably squalid (even by Boston G-man standards) underworld career. He’d prefer not to have “Mob hitman” in the first sentence of his death notice. There’s not much he can do about the racketeering conviction, or all his tawdry connections to the Bulger Crime Family. But “Mob hitman” is a bit much. Sadly, Zip has failed yet again to remove “assassin”...