M. Tullius Cicero, Speech before Roman Citizens on Behalf of Gaius Rabirius, Defendant Against the Charge of Treason
William Blake Tyrrell, Ed.

[19] Gladly, as I say, would I acknowledge, if I were in truth able or even if I were at liberty to do so, that Lucius Saturninus was killed by the hand of Gaius Rabirius. I would deem it a most glorious misdeed. But seeing that I cannot do this, what I will confess will be less efficacious for his reputation but not less for the charge against him. I confess that Gaius Rabirius took up weapons for the purpose of killing Saturninus. How is that, Labienus? What fuller confession, what more serious charge against my client were you expecting? Unless, of course, you do reckon that there is a difference between a man who has killed a man and a man who was armed for the purpose of killing a man. If it was wrong for Saturninus to be killed, weapons cannot be taken up against Saturninus without entailing a crime. If, however, you concede that weapons were taken up lawfully, [then, by necessity, you must concede that he was killed lawfully].