Ryan O'Neal, the renowned actor known for his roles in Love Story, Paper Moon, and Peyton Place, has passed away at the age of 82. The actor's cause of death has been revealed, according to The Blast, who obtained O'Neal's death certificate.

The certificate states that O'Neal died of congestive heart failure, a result of his long-standing battle with cardiomyopathy, a heart muscle disease. Cardiomyopathy made it harder for his heart to pump blood efficiently, ultimately leading to heart failure. O'Neal peacefully passed away at St. John's Medical in Los Angeles.

The death certificate confirms that there were no other contributing factors to O'Neal's passing. He was laid to rest at Pierce Brothers Westwood Village Memorial Park.

Upon hearing the news, O'Neal's son, Patrick O'Neal, took to Instagram to share his grief and pay tribute to his father. In three heartfelt posts featuring photos of a sunset, Patrick expressed the immense love and admiration he had for his dad.

Describing his father as his hero and a Hollywood legend, Patrick reminisced about O'Neal's successful career, from his early TV stardom on Peyton Place to his iconic film roles in Love Story and Paper Moon. He acknowledged O'Neal's significant impact on the entertainment industry and the popularity of the name "Ryan" as a result of his father's success.

Tatum O'Neal, Ryan O'Neal's daughter and co-star in the critically acclaimed film Paper Moon, also shared her gratitude for the outpouring of love and support. In an Instagram video, she thanked everyone and stated that her father is now in heaven.

Ryan O'Neal's death marks the end of an era in Hollywood, as he leaves behind a legacy of memorable performances and a lasting impact on the industry. Fans and colleagues alike mourn the loss of a talented and beloved actor.

The news of O'Neal's passing serves as a reminder of the fragility of life and the importance of cherishing loved ones. The entertainment industry and fans around the world unite in honoring his memory and celebrating his remarkable contributions to film and television.