Ex-College Basketball Star Jermaine Marshall Dead at 28

Ex-Arizona State basketball star Jermaine Marshall -- who also had a brief stint in the NBA -- has died at 28 years old ... his French professional team announced Friday.

Marshall was reportedly found dead in his apartment. The cause of death has not been released.

The Pennsylvania native played 3 seasons with Penn State before transferring to ASU for his senior year. He played a huge role in the Sun Devils' NCAA tournament run in 2014, averaging 15 points.

ASU released a statement on Friday ... saying "He gave us so many big buckets en route to the 2014 NCAA Tournament. Our thoughts and prayers go out to the family of Jermaine Marshall."

Marshall spent time with the Houston Rockets during the 2014-15 season ... and later moved to Europe to play professionally. He was most recently with the Hermine Nantes Basket in France.