During the first day the city was defended by the Polish pans and the Jews, who worked shoulder to shoulder on the city wall, fighting off the besiegers with cannon and rifles. But not all Poles were genuinely resolved to defend the city. Many of them merely thought of saving their lives. Governor Mladanovich himself conducted peace negotiations with the haidamacks, and was reconciled by their assurances that they would not lay hands on the pans, but would be satisfied with making short work of the Jews. When the haidamacks, headed by Gonta and Zheleznyak, had penetrated into the town, they threw themselves, in accordance with their promise, upon the Jews, who, crazed with terror, were running to and fro in the streets. They were murdered in beastlike fashion, being trampled under the hoofs of the horses, or hurled down from the roofs of the houses, while children were impaled on bayonets, and women were violated. A crowd of Jews to the number of some three thousand sought refuge behind the walls of the great synagogue. When the haidamacks approached the sacred edifice, several Jews, maddened with fury, hurled themselves with daggers and knives upon the front ranks of the enemy and killed a few men. The remaining Jews did nothing but pray to the Lord for salvation. To finish with the Jews quickly, the haidamacks placed a cannon at the entrance of the synagogue and blew up the doors, whereupon the murderers rushed inside, turning the house of prayer into a slaughter-house. Hundreds of dead bodies were soon swimming in pools of blood. Having disposed of the Jews, the haidamacks now proceeded to deal with the Poles. Many of them were slaughtered in their church. Mladanovich and all other pans suffered the same fate. The streets of the city were strewn with corpses or with mutilated, half-dead bodies. About twenty thousand Poles and Jews perished during this memorable "Uman massacre." Simultaneously smaller detachments of haidamacks and mutinous peasants were busy exterminating the Shlakhta and the Jews in other parts of the provinces of Kiev and Podolia. Where formerly the hordes of Bogdan Khmelnitzki had raged, Jewish blood was again flowing in streams, and the cries of Jewish martyrs were again heard. But this time the catastrophe did not assume the same gigantic proportions as in 1648. Both the Polish and Russian troops co-operated in suppressing the haidamack insurrection. Shortly after the massacre of Uman, Zheleznyak and Gonta were captured by order of the Russian General Krechetnikov. Gonta with his detachment was turned over to the Polish Government, and sentenced to be flayed alive and quartered. The other haidamack detachments were either annihilated or taken prisoner by the Polish commanders.