Appian of Alexandria Civil Wars 1.5.36

[36] Thus it came to pass that both the Senate and the knights, although opposed to each other, were united in hating Drusus. Only the plebeians were gratified with the colonies. The Italians, in whose interest chiefly Drusus was devising these plans, were apprehensive about the law providing for the colonies, because they thought that the Roman public domain (which was still undivided and which they were cultivating, some by force and others clandestinely) would be taken away from them, and that in many cases they might even be disturbed in their private holdings. The Etruscans and the Umbrians had the same fears as the Italians, ¹ and when they were summoned to the city, as it was thought, by the consuls, ostensibly for the purpose of complaining against the law of Drusus, but actually, as is believed, for the purpose of killing him, they cried down the law publicly and waited for the day of the comitia. Drusus learned of the plot against him and did not go out frequently, but transacted business from day to day in the atrium of his house, which was poorly lighted. One evening as he was sending the crowd away he exclaimed suddenly that he was wounded, and fell down while uttering the words. A shoemaker’s knife was found thrust into his hip.