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

[443] Now Catullus easily admitted of these his calumnies, and aggravated matters greatly, and made tragical exclamations, that he might also be supposed to have had a hand in the finishing of the Jewish war. But what was still harder, he did not only give a too easy belief to his stories, but he taught the Sicarii to accuse men falsely. He bid this Jonathan, therefore, to name one Alexander, a Jew (with whom he had formerly had a quarrel, and openly professed that he hated him); he also got him to name his wife Bernice, as concerned with him. These two Catullus ordered to be slain in the first place; nay, after them he caused all the rich and wealthy Jews to be slain, being no fewer in all than three thousand. This he thought he might do safely, because he confiscated their effects, and added them to Caesar's revenues.