Malcolm "Mac" Wallace

Malcolm Everett "Mac" Wallace (October 15, 1921 – January 7, 1971) was an American economist for the United States Department of Agriculture. On October 22, 1951, Wallace fatally shot John Douglas Kinser in the clubhouse of an Austin golf course owned by Kinser. He was the son of Alvin James Wallace Sr. (1895–1973), a cement and construction contractor, according to the 1930 US Census, and Alice Marie Riddle (1897–1959). Wallace attended Woodrow Wilson High School in Dallas, graduating in 1939. One of his classmates was R. D. Matthews. After high school, he enlisted in the United States Marine Corps in November 1939. While in the Marine Corps, he was assigned to the , but was discharged on September 25, 1940, after reinjuring his back.

After his discharge from the Marine Corps, he attended the University of Texas at Austin where he was a member of the Tejas Club, Texas Cowboys, and the president of the student body. In October 1951, Wallace was visiting Austin and Dallas while on vacation from his position in Washington. Immediately after the first shot, one golfer outside the clubhouse observed a man inside holding a revolver. According to the sheriff, Wallace protested the move and his defense attorney, Polk Shelton, had asked that Wallace not be moved.

During the trial, FBI special agent Joseph L. Schott stated that he had known Wallace for 12 years and in 1946 had given Wallace a German-made 6.35 mm Schmeisser automatic pistol that he (Schott) had acquired while serving in the United States Army in Germany. A firearms expert for the Department of Public Safety testified that the slugs and shells from the murder scene could have been fired from the Schmeisser. The prosecution did not attempt to establish a motive for the shooting, nor did it produce an eyewitness to it or the murder weapon. #tag:ref|The Daily Texan wrote: "The jury can acquit Wallace or render a verdict of from two to five years—or death. If it renders from two to five years, then it can also suspend the sentence, but if the verdict is over five years it cannot suspend the sentence." After a short recess, O' Betts sentenced Wallace to a five-year sentence that was suspended. He was buried in the Nevills Chapel Cemetery in Mount Pleasant. According to Estes, he and Johnson discussed the need to stop Marshall from making their illegal ties public. According to the authors, Collom met Loy Factor while confined in a hospital isolation ward in 1971 where Factor implicated himself, Wallace, and a woman named "Ruth Ann" in the assassination of Kennedy.

Barr McClellan, author of Blood, Money & Power: How LBJ Killed JFK, reiterated many of Estes's claims in 2003 stating that Johnson, Wallace, Estes, and Cliff Carter were responsible for the death of Marshall. According to McClellan, Wallace fired one shot at Kennedy from the sixth floor of the Texas School Book Depository, then ran and escaped. Similar to McClellan's account, Stone said six eyewitnesses placed Wallace in that location and that a fingerprint found on a box in the sniper's nest was his.