Webactor ryan o’neal died of congestive heart failure after suffering from cardiomyopathy for years, according to his death certificate, obtained friday by the. Webron o'neal, the actor who briefly became an international star in the film superfly after producers saw his performance in the play no place to be somebody ,. Webernest died when ron was 16 years old. Six months later his brother, who worked as a truck driver, was killed in an accident. Following these tragedies his mother found a job. Webafter a long battle with pancreatic cancer, he died on january 14, 2004 at the age of 66. African american history, people. Webryan o'neal's cause of death has been officially revealed, which comes after the actor died earlier this month on december 8. The beloved love story actor died. Webron o’neal’s health deteriorated in the last months of his life, as the cancer took its toll on his body. He was hospitalized several times and suffered from pneumonia. O'neal's son patrick confirmed his death friday. Webron o’neal, a stage and film actor who rode the wave of blaxploitation movies in the early 1970s starring as the sartorially resplendent harlem drug dealer in. Webryan o’neal, the famed actor who sprang onto the scene with his starring role in “love story” in the early 1970s, has died, his son said.