Oliver J. Miller, a former star athlete at Southwest High School and later a standout at Arkansas and in the NBA, has died. He was 54. Nicknamed “The Big O” because of his 6-foot-9, 300-plus pound body frame, Miller died on Wednesday, March 12, according to longtime Phoenix Suns television analyst Eddie Johnson.

Oliver Miller was known as the "The Big O" for his 6-foot-9, 280-pound frame that ballooned to well over 300 pounds during his NBA career.

Oliver Miller, who played nine seasons in the NBA after starring at Arkansas, has died at the age of 54 after a bout with brain cancer.