Sulla made peace with Rome's enemies in the east and began to arrange for his return to Rome. Cinna, Marius's populist , was killed by his own men as they moved to meet Sulla on foreign soil. When Sulla heard of this, he ceased negotiations with Rome and openly rebelled in 84. Invading the peninsula, he was joined by many aristocrats including Crassus and Pompey and defeated all major opposition within a year. He began a dictatorship and purged the state of many populists through proscription. A reign of terror followed in which some innocents were denounced just so their property could be seized for the benefit of Sulla's followers. Sulla's coup resulted in a major victory for the oligarchs. He reversed the reforms of the Gracchi and other populists, stripped the tribunes of the people of much of their power and returned authority over the courts to the senators.