Twelve Days of Xmas Trivia

[Eva Elisabeth]

Excellent, Bill and Laurie, here's the entire scene:
   
Laurie: 7
Bill B.: 4
Dennis: 2
Roger: 2
Susan: 1
Gene: 1
Leon: 1

(Thanks, Laurie! )
PS: As for the McKinley-towel - it "is" actually a(n XXL) 500-$-bill.

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Well then - here's one last scene from "Assassination! The Brick Chronicle of Attempts on the Lives of Twelve US Presidents":
   
Who is/was he?