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

[373] Now as they came to Cesarea, every body was there talking of Herod's sons, and the kingdom was in suspense, and the people in great expectation of what would become of them; for a terrible fear seized upon all men, lest the ancient disorders of the family should come to a sad conclusion, and they were in great trouble about their sufferings; nor was it without danger to say any rash thing about this matter, nor even to hear another saying it, but men's pity was forced to be shut up in themselves, which rendered the excess of their sorrow very irksome, but very silent yet was there an old soldier of Herod's, whose name was Tero, who had a son of the same age with Alexander, and his friend, who was so very free as openly to speak out what others silently thought about that matter; and was forced to cry out often among the multitude, and said, in the most unguarded manner, that truth was perished, and justice taken away from men, while lies and ill-will prevailed, and brought such a mist before public affairs, that the offenders were not able to see the greatest mischiefs that can befall men. And as he was so bold, he seemed not to have kept himself out of danger, by speaking so freely; but the reasonableness of what he said moved men to regard him as having behaved himself with great manhood, and this at a proper time also, for which reason every one heard what he said with pleasure; and although they first took care of their own safety by keeping silent themselves, yet did they kindly receive the great freedom he took; for the expectation they were in of so great an affliction, put a force upon them to speak of Tero whatsoever they pleased.