Richard Brooke Garnett

Richard Brooke Garnett (November 21, 1817 – July 3, 1863) was a career United States Army officer and a Confederate general in the American Civil War. He was court-martialed by Stonewall Jackson for his actions in command of the Stonewall Brigade at the First Battle of Kernstown, and killed during Pickett's Charge at the Battle of Gettysburg.
During Jackson's Valley Campaign of 1862, Garnett's military career took a downward turn at the First Battle of Kernstown in March. Garnett, finding his brigade low on ammunition and surrounded by forces attacking from three sides, ordered a retreat. Jackson was infuriated and accused Garnett of disobeying orders, since he did not have Jackson's permission to retreat. Jackson, well known as a strict disciplinarian, arrested Garnett for "neglect of duty" on April 1 and relieved him of command. Garnett's court-martial started in August 1862, with only Jackson and his aide giving testimony. However the trial was suspended due to the start of Gen. Robert E. Lee's Northern Virginia Campaign and the Second Battle of Bull Run that August.
Lee ordered Jackson to release Garnett from arrest and he was assigned to command the injured George Pickett's brigade in Lt. Gen. James Longstreet's First Corps in the Army of Northern Virginia. Garnett commanded the brigade credibly at the Battle of Antietam in September, after which he assumed permanent command of the brigade on November 26 when Pickett was promoted to divisional command,
During the Gettysburg Campaign, Garnett's brigade continued in the division of George Pickett and, due to the order of march, did not reach the battlefield from Chambersburg, Pennsylvania, until late on the afternoon of July 2, 1863.
During Pickett's charge, Garnett got within 20 yards of the "Angle" on Cemetery Ridge before he was killed, a bullet striking him in the head as he waved his hat to urge his men forward.
Although Garnett was wearing a new uniform, somehow his body was never identified and he was buried by Union soldiers in a mass grave. Robert K. Krick presumes that his remains were later transferred to Hollywood Cemetery in Richmond.
The photograph of Richard Garnett in this article is one of only two known and it may in fact be of his cousin Robert S. Garnett instead. A letter to the editor of America's Civil War magazine claims that the Library of Congress possesses a photograph of Richard B. Garnett that has been mislabeled as "Franklin Gardner, CSA, Born N.Y.C."
https://en.wikipedia.org/wiki/Richard_B._Garnett