Booth's mistress, Ella Starr, and other "unknown" Booth ladies!

[LincolnToddFan]

A political assassin acts as judge, jury and executioner when he or(she) subverts the will of the people by destroying the person they have elected to lead them. A political assassination impacts history in a very serious-occasionally-devastating way.

Mass murderers/terrorists like Brown and Quantrell destroy more lives but affect the destinies of nations only rarely, although one could argue that John Brown's crimes did trigger events that influenced history.