Flavius Josephus, Antiquities of the Jews
William Whiston, A.M., Ed.

[142] Hereupon Herod was so amazed at the prodigious wickedness of Antipater, that he was ready to have ordered him to be slain immediately, as a turbulent person in the most important concerns, and as one that had laid a plot not only against himself, but against his sister also, and even corrupted Caesar's own domestics. Salome also provoked him to it, beating her breast, and bidding him kill her, if he could produce any credible testimony that she had acted in that manner. Herod also sent for his son, and asked him about this matter, and bid him contradict if he could, and not suppress any thing he had to say for himself; and when he had not one word to say, he asked him, since he was every way caught in his villainy, that he would make no further delay, but discover his associates in these his wicked designs. So he laid all upon Antiphilus, but discovered nobody else. Hereupon Herod was in such great grief, that he was ready to send his son to Rome to Caesar, there to give an account of these his wicked contrivances. But he soon became afraid, lest he might there, by the assistance of his friends, escape the danger he was in; so he kept him bound as before, and sent more ambassadors and letters [to Rome] to accuse his son, and an account of what assistance Acme had given him in his wicked designs, with copies of the epistles before mentioned.