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

[254] But as soon as ever it was day, Cherea, and those that were with him, came into the senate, and attempted to make speeches to the soldiers. However, the multitude of those soldiers, when they saw that they were making signals for silence with their hands, and were ready to begin to speak to them, grew tumultuous, and would not let them speak at all, because they were all zealous to be under a monarchy; and they demanded of the senate one for their ruler, as not enduring any longer delays: but the senate hesitated about either their own governing, or how they should themselves be governed, while the soldiers would not admit them to govern, and the murderers of Caius would not permit the soldiers to dictate to them. When they were in these circumstances, Cherea was not able to contain the anger he had, and promised, that if they desired an emperor, he would give them one, if any one would bring him the watchword from Eutychus. Now this Eutychus was charioteer of the green-band faction, styled Prasine, and a great friend of Caius, who used to harass the soldiery with building stables for the horses, and spent his time in ignominious labors, which occasioned Cherea to reproach them with him, and to abuse them with much other scurrilous language; and told them he would bring them the head of Claudius; and that it was an amazing thing, that, after their former madness, they should commit their government to a fool. Yet were not they moved with his words, but drew their swords, and took up their ensigns, and went to Claudius, to join in taking the oath of fidelity to him. So the senate were left without any body to defend them, and the very consuls differed nothing from private persons. They were also under consternation and sorrow, men not knowing what would become of them, because Claudius was very angry at them; so they fell a reproaching one another, and repented of what they had done. At which juncture Sabinus, one of Caius's murderers, threatened that he would sooner come into the midst of them and kill himself, than consent to make Claudius emperor, and see slavery returning upon them; he also abused Cherea for loving his life too well, while he who was the first in his contempt of Caius, could think it a good thin to live, when, even by all that they had done for the recovery of their liberty, they found it impossible to do it. But Cherea said he had no manner of doubt upon him about killing himself; that yet he would first sound the intentions of Claudius before he did it.