Union Army Sergeant James T. Clancy, who was awarded the Medal of Honor on July 3, 1865, was credited with firing the fatal shot.
They did not reach their objective of cutting the Boydton Plank Road, a key supply line for the besieged Confederate forces.
The cavalry brigade of Union Brigadier General Henry E. Davies continued to operate at night on September 30, 1864, and took ground voluntarily ceded by the Confederates earlier.
In confused attacking and firing in the dark, only a few casualties were suffered by both sides but Dunovant's men pulled back and he was chagrined by being taken by surprise.
Davies now suspected that he was outnumbered by the force in front of him and also pulled back from Armstrong's house to General Gregg's position.
Young moved toward the positions that General Gregg had vacated and threatened to take the Vaughan Road–Wyatt Road intersection, which was held only by the 1st Maine Volunteer Cavalry Regiment as a rear guard.
Confederate Brigadier General Matthew C. Butler regained the Vaughan Road positions as the 1st Maine Cavalry retreated in the direction of the remainder of the Union force.
Confederate Colonel James Lucius Davis did get in front of part of the Union force with the Virginia regiments and took 46 prisoners.
Major Henry Farley, commanding dismounted troopers without horses, convinced Butler that Davies's position could be outflanked.
Brigadier General John Dunovant was struck in the chest by a bullet while leading the charge against the Union position and was probably dead by the time he hit the ground.
Union Sergeant James T. Clancy of the 1st New Jersey Volunteer Cavalry Regiment was credited with firing the shot that killed General Dunovant.
Young's initial thrust cut off Company C of the 1st New Jersey Volunteer Cavalry Regiment led by Lieutenant William Hughes.
This force easily turned back the charge of Young's men, who had lost the element of surprise against a weaker part of the Union line, which had been withdrawn and strengthened during the delay in the attack.
They lost about 90 men, at least 46 of whom were captured, while the Confederates suffered about 130 casualties in the Vaughan Road and McDowell's Farm part of the overall battle of the Union Fifth Offensive.
After the fighting on October 1, Confederate Lt. General A. P. Hill concentrated on preventing further extension of Union lines toward the Boydton Plank Road, not in recapturing lost ground.
General Lee saw the ultimate danger in a letter he wrote to Wade Hampton two days after the Battle of Battle of Peebles' Farm (or Poplar Springs Church) where he said that if the Union Army could not be stopped from extending its left flank, they would reach the Appomattox River and cut Confederate forces off from the south side altogether.