Cassius, it appears, while proceeding on foot, had encountered Antonius, a centurion, who suddenly wounded him in the neck, though the blow was not exactly a mortal one. Antonius, now, was carried on by the momentum of his horse and left the deed incomplete, so that his victim nearly escaped; but in the meantime the decurion finished what remained to be done. They cut off Cassius' head and set out to meet the emperor.
Edition :
Dio's Roman History. Cassius Dio Cocceianus. Earnest Cary. Herbert Baldwin Foster. William Heinemann, Harvard University Press. London; New York. 1914-.
Notes :
For the death of Cassius, please refer to: "A Decurion kills the injured Avidius Cassius."