Name the Artist: Invincible?

Questions

Simpsons: in one episode, who moved in across the street from the simpsons?

Simpsons: in the thrilling two part cliffhanger "who shot mr. Burn" what was the motive for gunning down springfield's evil billionaire nuclear plant owner?

Simpsons: Moe makes him box against champion Drederick Tatum?

Simpsons: Principal Skinner once proposed marriage to her, the celibate Bouvier twin?

Simpsons: simpsons creator matt groening named homer, marge, lisa & maggie after his parents & sisters, respectively. But who is bart named for?