2) Booth, John Wilkes. The Columbia Encyclopedia, Sixth Edition. 2001
...shot Lincoln, and vaulted to the stage (breaking his left leg in the process) shouting "Sic semper tyrannis! The South is avenged!" He then went behind the scenes...

3) 9. Death of Abraham Lincoln. Collect. Whitman, Walt. 1892. Prose Works
...desperation, perhaps insanity—launches out in a firm and steady voice the words Sic semper tyrannis—and then walks with neither slow nor very rapid pace diagonally...