The Ecclesiastical History of Socrates Scholasticus

Thus Athanasius departed, hastening to the emperor, and the Synod in the first place condemned him in his absence; and when the result of the enquiry which had been instituted at Mareotis was presented, they voted to depose him; loading him with opprobrious epithets in their sentence of deposition, but being wholly silent respecting the disgraceful defeat of the charge of murder brought by his calumniators. They moreover received into communion Arsenius, who was reported to have been murdered; and he who had formerly been a bishop of the Melitian heresy subscribed to the deposition of Athanasius as bishop of the city of Hypselopolis. Thus by an extraordinary course of circumstances, the alleged victim of assassination by Athanasius, was found alive to assist in deposing him.