Famous last words in "Julius Caesar" (2,2,5)
I believe the answer is:
et tu brute
(Other definitions for et tu brute that I've seen before include "Caesar's reported words on being stabbed" , "Caesar's dying words" , "Julius Caesar's last words to Brutus, according to Shakespeare" , "Shakespeare's version of Julius Caesar's last words, in Latin" , "Julius Caesar's last words to unexpected assassin" .)