97. Stanford White (1853-1906)

Stanford White was an architect with a very fabulous moustache who designed, among other things, fancy fifth avenue mansions for the Vanderbilts and the Astors (he also did Rosecliff in Newport), but this part of his Wikipedia entry that explains his death is also something:

During the suggestive chorus song, “I Could Love a Million Girls,” at the premiere performance of the musical revue Mam’zelle Champagne at the Madison Square Roof Garden – on the roof of a building that he had designed 15 years previously – White was shot point blank in the face and killed by Harry Kendall Thaw. Thaw was the jealous millionaire husband of Evelyn Nesbit, a popular actress and artist’s model, with whom White had had a sexual relationship when she was 16 and White was 47.

The initial reaction of the crowd was one of good cheer, as elaborate party tricks amongst the upper echelon of New York Society were common at the time. However, when it became apparent that White was dead, hysteria ensued.