John Hinckley, who shot but didn’t kill President Ronald Reagan in March 1981, became a featured musical character in Stephen Sondheim’s Assassins (‘90). Perhaps this is what gave Hinckley, partially released from supervised psychiatric care two years ago, the idea of becoming a real-life roving troubadour.

Alas, a forthcoming Hinckley gig in Hamden, Connecticut (Space Ballroom, July 16), has been cancelled due to a sizable negative response.

Imagine that in addition to nearly killing Texas governor John Connolly, Lee Harvey Oswald only wounded JFK on 11.22.63. 40 years later Oswald is released from psychiatric care, and decides to star in a one-man lounge act, “An Evening with O.H. Lee: Poetry, Philosophy, Impressions.”