At 6 o'clock the troops and prisoners marched back to the Arsenal, leaving Gen. Sweeny with his Regulars in charge of Camp Jackson. On the way rioters thronged the line of march and vilely abused the soldiers, but Lyon was vigilant in restraining his men, and prevented their making any return by firing upon their assailants. During the night and the next day the prisoners were all released, the privates taking an oath not to serve in any capacity against the Government during the war, and the officers giving a parole not to serve in any military capacity against the United States. It was provided that the parole should be returned upon anyone surrendering himself as a prisoner of war, and was accompanied with a protest against the justice of executing it. One exception, Capt. Emmett MacDonald, who had been efficient in bringing the Irishmen into opposition to the "Dutch," refused to accept the parole on the ground taken by all the others that they had done nothing wrong, and finally secured his release through a writ of habeas corpus. The excitement that night in St. Louis was fearful, with the Secessionists raging. It is to the credit, however, of James McDonough, whom Governor Jackson's Secessionist Police Commissioners had appointed Chief of Police, that, whatever his sympathies, he did not allow them to interfere with his official duties, and exerted himself to the utmost to preserve the municipal peace. The violent Secessionists started to mob the offices of the Republican papers, and to attack the residences of Union leaders, but were everywhere met by squads of police backed up by an armed force of Home Guards, which, with the appeals of the conservative men of influence on both sides, managed to stay the storm. 80 McDonough could not, however, prevent a number of outrages, and several of the Home Guards caught alone were killed by the rowdies that night and the next day--Saturday. This incensed the Germans terribly, and stories reached the Secession parts of the city that they contemplated fearful revenge, which they could wreak, having arms in their own hands, while the "natural protectors" of the people--Frost's military companies--were prisoners of war and disarmed. The Mayor issued a proclamation to quiet the people, and requested all keepers of drinking places to at once close and remain closed during the excitement. All minors were ordered to remain in doors for three days, and all good citizens were requested to remain in doors after nightfall and to avoid gatherings and meetings.