Source : Webster's Revised Unabridged Dictionary (1913)

Assassinator \As*sas"si*na`tor\, n.
   An assassin.

Source : WordNet®

assassinator
     n : a murderer (especially one who kills a prominent political
         figure) who kills by a treacherous surprise attack and
         often is hired to do the deed; "his assassins were hunted
         down like animals"; "assassinators of kings and emperors"
         [syn: {assassin}, {bravo}]