22Drusus, the son of Tiberius, perished by poison. It appears that Sejanus, puffed up by his power and rank, in addition to his other overweening behaviour, finally turned against Drusus and once struck him a blow with his fist. 2As this gave him reason to fear both Drusus and Tiberius, and as he felt sure at the same time that if he could once get the young man out of the way, he could handle the other very easily, he administered poison to the son through the agency of those in attendance upon him and of Drusus’ wife, whom some call Livilla; for Sejanus was her paramour. 3The guilt was imputed to Tiberius, because he altered none of his accustomed habits either during the illness of Drusus or at his death, and would not allow others to alter theirs. But the story is not credible. For this was his regular practice, as a matter of principle, in every case alike, and besides he was greatly attached to Drusus, the only legitimate son he had; 4furthermore, he punished those who had compassed his death, some at once and some later. At the time he entered the senate, delivered the appropriate eulogy over his son, and returned home.
5Tiberius forbade those who were debarred from fire and water to make any will, a custom that is still observed. He brought Aelius Saturninus before the senate for trial on the charge of having recited some improper verses about him, and upon his conviction caused him to be hurled down from the Capitol.