Sic Semper Tyrannis

Sic Semper Tyrannus is a challenge added in the Gun Runners' Arsenal DLC for Fallout: New Vegas.

Obtaining
Kill President Kimball with any One-Handed Pistol.

Behind the scenes

 * The name of this challenge is a reference to the assassination of Abraham Lincoln. The assassin, John Wilkes Booth, yelled the phrase after shooting the President with a Philadelphia Derringer.
 * The phrase is Latin for "Thus always to tyrants". It is the state motto of Virginia.