After reaching Vincennes the troops became mutinous, and at last flatly refused longer to obey orders, and marched home as a disorderly mob, to the disgrace of themselves and their leader. Nevertheless the expedition had really accomplished something, for it overawed the Wabash and Illinois Indians, and effectively put a stop to any active expressions of disloyalty or disaffection on the part of the French. Clark sent officers to the Illinois towns, and established a garrison of one hundred and fifty men at Vincennes, [Footnote: _Do_. Virginia State Papers. G. R. Clark to Patrick Henry. Draper MSS., Proceedings of Committee of Kentucky Convention, Dec. 19, 1786.] besides seizing the goods of a Spanish merchant in retaliation for wrongs committed on American merchants by the Spaniards. Logan's Expedition. This failure was in small part offset by a successful expedition led by Logan at the same time against the Shawnee towns. [Footnote: State Department MSS., Virginia State Papers, Logan to Patrick Henry, December 17, 1786.] On October 5th, he attacked them with seven hundred and ninety men. There was little or no resistance, most of the warriors having gone to oppose Clark. Logan took ten scalps and thirty-two prisoners, burned two hundred cabins and quantities of corn, and returned in triumph after a fortnight's absence. One deed of infamy sullied his success. Among his colonels was the scoundrel McGarry, who, in cold blood, murdered the old Shawnee chief, Molunthee, several hours after he had been captured; the shame of the barbarous deed being aggravated by the fact that the old chief had always been friendly to the Americans. [Footnote: Draper MSS., Caleb Wallace to Wm. Fleming, October 23, 1786. State Department MSS., No. 150, vol. ii., Harmar's Letter, November 15, 1786.] Other murders would probably have followed, had it not been for the prompt and honorable action of Colonels Robert Patterson and Robert Trotter, who ordered their men to shoot down any one who molested another prisoner. McGarry then threatened them, and they in return demanded that he be court-martialled for murder. [Footnote: Virginia State Papers, vol. iv., p. 212.] Logan, to his discredit, refused the court-martial, for fear of creating further trouble. The bane of the frontier military organization was the helplessness of the elected commanders, their dependence on their followers, and the inability of the decent men to punish the atrocious misdeeds of their associates.