Some deputies, meanwhile, aroused by the tocsin, had hurried to the hall of the legislative body, and had opened the sitting under the presidentship of Vergniaud. Hearing that Pétion was at the Tuileries, and presuming he was detained there, and wanted to be released, they sent for him to the bar of the assembly, to give an account of the state of Paris. On receiving this order, he left the château; he appeared before the assembly, where a deputation again inquired for him, also supposing him to be a prisoner at the Tuileries. With this deputation he returned to the Hôtel de Ville, where he was placed under a guard of three hundred men by the new commune. The latter, unwilling to allow any other authority on this day of disorder than the insurrectional authorities, early in the morning sent for the commandant Mandat, to know what arrangements were made at the château. Mandat hesitated to obey; yet, as he did not know that the municipality had been changed, and as his duty required him to obey its orders, on a second call which he received from the commune, he proceeded to the Hôtel de Ville. On perceiving new faces as he entered, he turned pale. He was accused of authorizing the troops to fire on the people. He became agitated, and was ordered to the Abbaye, and the mob murdered him as he was leaving, on the steps of the Hôtel de Ville. The commune immediately conferred the command of the national guard on Santerre. The court was thus deprived of its most determined and influential defender. The presence of Mandat, and the order he had received to employ force in case of need, were necessary to induce the national guard to fight. The sight of the nobles and royalists had lessened its zeal. Mandat himself, previous to his departure, had urged the queen in vain to dismiss this troop, which the constitutionalists considered as a troop of aristocrats.