Riall, who had been wounded in one arm and was riding to the rear. Most of the prisoners escaped when Ketchum, having briefly rejoined Jesup, ran into an enemy unit while trying to return to the main body of the American army, although Riall and militia cavalry leader Captain William Hamilton Merritt remained prisoners. Jesup's action and the steadiness of Scott's brigade persuaded Drummond to withdraw his centre to maintain alignment with his left flank, and also pull back the Glengarry Light Infantry, who had been harassing Scott's own left flank. The withdrawal of Drummond's center left the artillery exposed in front of the infantry. Brown's attack By nightfall, Scott's brigade had suffered heavy casualties. Brown had arrived late in the day with the American main body (the 2nd Brigade of regulars under Brigadier General Eleazer Wheelock Ripley and a brigade of volunteers from the militia under Brigadier General Peter B. Porter). As Ripley and Porter relieved Scott's brigade, Brown ordered the 21st U.S. Infantry under Lieutenant Colonel James Miller to capture the British guns. Miller famously responded, "I'll try, Sir". While the British were distracted by another attack by the 1st U.S. Infantry on their right, Miller's troops deployed within a few yards of the British artillery. They fired a volley of musketry that killed most of the gunners and followed up with a bayonet charge; this captured the guns and drove the British centre from the hill. The British infantry immediately behind the guns (the 2nd Battalion of the 89th Foot) tried to counter-attack, but were driven back by Miller and Ripley. Meanwhile, the British column under Colonel Hercules Scott was arriving on the field, already tired from its unnecessary diversion via Queenston. Unaware of the changed situation, they blundered into Ripley's brigade and were also driven back in disorder, losing their own three 6-pounder guns. These were recovered by a charge by the light company of the 41st Foot, but were either abandoned again or remained in British hands but could not be brought into action as the drivers and gunners had been scattered. Drummond's counter-attack While the Americans tried to deploy their own artillery among the captured British guns, Drummond (who had been wounded in the neck) reorganized his troops and mounted a determined attempt to retake his own cannon. There was no subtlety; Drummond launched an attack in line, without attempting to use his many