Once the people had come together in the hippodrome and were objecting to his conduct, and he had them cut down by the soldiers. In this way he imposed silence upon them all.

[-29-] As he continued to show insanity in every way, a plot was formed against him by Cassius Chairea and Cornelius Sabinus, though they were holding tribuneships in his pretorian guard. A number were in the conspiracy and privy to what was being done, among whom were Callistus and the prefect.

Dio's Rome, Vol. 4 — Part 179

Practically all of his courtiers were interested, both in their own behalf and for the common good. Any who did not take part in the conspiracy still refused to reveal it, though they knew of it and were glad to see a plot formed against him.

Dio's Rome, Vol. 4 — Part 179

But the men who actually killed Gaius were those mentioned. It is worth noting, besides, that Chairea was an old-fashioned sort of man and had a private cause for anger. Gaius was in the habit of nicknaming him "sissy" (though he was the hardiest of men) and whenever it came the turn of Chairea to command would give him some such watchword as "yearning" or "Venus." Again, an oracle had a short time before warned Gaius to beware of Cassius. The former, supposing that it had reference to Gaius Cassius, governor of Asia at the time, because he was a descendant of that Cassius who had slain Cæsar, had him brought as a prisoner. The person whose future conduct the divinity was really indicating to the emperor, however, was this Cassius Chairea. Likewise a certain Egyptian, Apollonius, foretold in his native land what happened to him. For this speech he was sent to Rome and was brought before the emperor the day on which the latter was destined to die; his punishment was postponed till a little later, and in this way his life was saved.

Dio's Rome, Vol. 4 — Part 179

The deed was done as follows: Gaius was celebrating a festival in the palace and was attending to the production of a spectacle. In the course of this he was himself both eating and drinking and was feasting the rest of the company. Pomponius Secundus, consul at the time, was taking his fill of the food as he sat by the emperor's feet, and at the same time kept continually bending over to shower kisses upon them. Gaius himself decided that he wanted to dance and act as a tragedian. The followers of Chairea could endure it no longer. As he went out of the theatre to see the boys of most noble lineage whom he had imported from Greece and Ionia to sing the hymn composed in his honor, the conspirators wounded him, then intercepted him in a narrow passage and killed him. When he fell to the ground none of those present would keep his hands off him but they all savagely stabbed the lifeless corpse again and again. Some chewed pieces of his flesh. His wife and daughter were immediately slain.