Plutarch wrote that many of Pyrrhus' ships were undermanned and he begun to collect oarsmen. He stopped dealing with the Greek cities fairly and treated them in a despotic manner, using compulsion and imposing fines. He was no longer a popular leader. He became a tyrant known for "ingratitude and faithlessness". At first the Sicilian Greeks put up with this. Things changed when Pyrrhus became suspicious of Sosistratus and Thoenon, the men who had invited him to Sicily and had been of great assistance to him. Sosistratus was afraid of the suspicions of Pyrrhus and kept a low profile. Pyrrhus accused Thoenon of complicity with Sosistratus and had him executed. Dionysius of Halicarnassus gave some details of the behaviour of Pyrrhus. He seized the estates of Agathocles of Syracuse from the relatives and friends who had inherited them and gave them to his friends. He gave the chief offices in the cities to his military men. He conducted some trials and some administrative tasks himself and assigned others to members of his court, who were interested only in personal gain and luxury. He established garrisons with the excuse that they were for protection against the Carthaginians. He arrested the cities’ most prominent men and had them executed on false treason charges, one of whom was Thoenon. Pyrrhus tried to arrest Sosistratus, but he escaped from the city.