It was certainly then the understanding on all sides, at least, that the "State" and municipal authorities would deal with the delegates to the convention, if they interfered with them at all, through the grand jury and the officers of the criminal court, and not through the police. This did not mean, of course, that the police should not be present in the neighborhood of the convention for the purpose of keeping the {97} public peace. They were ordered to assemble at the stations on the morning of the 30th (July) and to bring their arms. According to General Sheridan's report to the President, the riot was occasioned by the marching of a procession of negroes, about one hundred strong and partly armed, through several of the streets to the locality of the convention. It occurred about an hour after the members of the convention had assembled. Naturally a number of people, mostly of the lower orders, gathered on the sidewalks of the streets through which the procession passed. Hooting and jeering followed. Then a shot was fired, probably by a negro in the procession. Then other shots followed and the crowd rushed after the procession, which soon arrived in front of the building in which the convention sat. Brickbats now flew from each side and the riot was in full progress when the police appeared on the scene. The procession rushed into the building, leaving a few of its members outside. One of these and a policeman came to blows, when another shot was fired, upon which the policemen began firing through the windows of the building. After a few moments a white flag was displayed from one of the windows, whereupon the firing ceased and the policemen rushed into the building. Once in the building they fired their revolvers upon the persons present indiscriminately and with terrible effect. The persons who succeeded in escaping from the building were also fired on by the police and by citizens, and many were killed or wounded. Nearly two hundred persons were killed or injured, mostly negroes, but some whites, and among them some members of the proposed convention. There were no United States troops in the city at the hour of the riot, their barracks being outside. General Baird had ordered four companies to take position near the place of the {98} convention, but owing to the fact that he had got the impression that the convention would assemble at 6 P.M., he had ordered them to repair to the assigned position at 5 P.M. They, consequently, did not arrive until the riot was over and the convention was dispersed.