“Caesar made every exertion to save the prisoners, and his speech, full of covert threats as to the future inevitable vengeance of the democracy, made the deepest impression. Although all the consulars and the great majority of the senate had already declared for the execution, most of them, with Cicero at their head, seemed now once more inclined to keep within the limits of the law. But when Cato in pettifogging fashion brought the champions of the milder view into suspicion of being accomplices of the plot, and pointed to the preparations for liberating the prisoners by a street-riot, he succeeded in throwing the waverers into a fresh alarm, and in securing a majority for the immediate execution of the transgressors.

[See Sallust, also In Catilinam IV]”