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

[540] So the king got up, and inveighed against his sons, as if they were present; and as for that part of the accusation that they had plotted against him, he urged it but faintly, because he was destitute of proofs; but he insisted before the assessors on the reproaches, and jests, and injurious carriage, and ten thousand the like offenses against him, which were heavier than death itself; and when nobody contradicted him, he moved them to pity his case, as though he had been condemned himself, now he had gained a bitter victory against his sons. So he asked every one's sentence, which sentence was first of all given by Saturninus, and was this: That he condemned the young men, but not to death; for that it was not fit for him, who had three sons of his own now present, to give his vote for the destruction of the sons of another. The two lieutenants also gave the like vote; some others there were also who followed their example; but Volumnius began to vote on the more melancholy side, and all those that came after him condemned the young men to die, some out of flattery, and some out of hatred to Herod; but none out of indignation at their crimes. And now all Syria and Judea was in great expectation, and waited for the last act of this tragedy; yet did nobody, suppose that Herod would be so barbarous as to murder his children: however, he carried them away to Tyre, and thence sailed to Cesarea, and deliberated with himself what sort of death the young men should suffer.