The 6-7 senior-to-be forward says he is planning to transfer to another college. He has also been looking into the possibility of playing pro ball on a minor league level or overseas. New Auburn head coach Jeff Lebo has given the forward a release.
A native of Montgomery, Killingsworth averaged 13.7 points and 6.9 rebounds per game as a junior. He scored 12.8 points per game vs. SEC opponents.
Killingsworth's absence means the Tigers will be short on inside players for Coach Jeff Lebo's first season.
"This is certainly typical with coaching transitions," Lebo said on Tuesday. "Marco is looking for a fresh start. We appreciate what he has done in his three years at Auburn University, and we wish him well."
Killingsworth issued a statement before leaving that said, "I have decided to pull my name from the 2004 NBA Draft. I am returning to college to finish my degree and will continue to improve my game. I have spoken with Coach Lebo and have received my release from Auburn and will transfer. This decision has nothing to do with the new coaching staff. I appreciate Coach Lebo's support.
"This spring has been a difficult but valuable time for me to evaluate my future. As I look forward, I will always value my experience at Auburn. I wish Auburn and my teammatees nothing but the best."
Killingsworth hit 58.7 percent of his field goals and was named second team All-SEC as a junior. He was 4-10 on three-pointers and hit 64.2 percent of his 120 free throws. He had 28 assists, 68 turnovers, 21 steals and blocked 16 shots.
Killingsworth started 33 of 34 games as a sophomore and averaged 13.3 points and 6.4 rebounds. As a freshman in 2001-2002, he averaged 7.8 points and 4.2 rebounds while starting half of Auburn's 28 games.
A Parade All-American as a high school senior at Central Park Christian Academy in Birmingham, he averaged 30 points and 13 rebounds there after transferring from Sidney Lanier High in Montgomery.