General Stonewall Jackson died May 10, 1863, in Caroline County, Va., 150 years ago Scholars have long questioned whether it was an infection or pneumonia that killed Jackson, who gained the nickname "Stonewall" early in the Civil war and went on to be lionized in the South and feared in the North because of his military exploits. On the 150th anniversary of Jackson's death, a trauma surgeon with experience on the battlefield in Iraq and Afghanistan will reveal his diagnosis of Jackson's death after reinvestigating the medical record. After reviewing the 1860s files and subsequent reports, University of Maryland surgeon and professor Joseph DuBose told The Associated Press that Jackson most likely died of pneumonia.