"Tacitus gives the fullest report of the trial, and his account has been proved essentially accurate by a recently discovered bronze tablet which gives the official version of the trial and its result. [[24]] The issue was indeed treason, not poison, and Tiberius was concerned to appear impartial. Tacitus departs from the official version with the addition of a rumor that Piso had in his possession a letter from Tiberius instructing him in regard to Germanicus and that he intended to show it to the senate and implicate Tiberius in what had taken place in Syria. He further implies that Piso's death might not have been a suicide but an execution to prevent the disclosure. In a sense the bronze tablet corroborates Tacitus' innuendo, for the careful and detailed report that was set up in every legionary camp in the Empire shows the unpopular Tiberius on the defensive and confirms that the trial was a crisis for him. Tiberius now faced a truly difficult rival. Dead, perhaps martyred, Germanicus remained a formidable force in Roman politics. "
Tiberuis Varo! Give me back my Germanicus!!!