On May 18, Ken Osmond died and his death certificate has finally divulged the details about the Leave It to Beaver star's death. Osmond, who succumbed to a cardiopulmonary arrest was also suffering from chronic obstructive pulmonary disease, which restricts airflow from the lungs.

Osmond's death certificate was acquired by TMZ on June 8, revealing multiple other health-related issues such as pneumonia, hypertension, depression, congestive heart failure, atrial fibrillation, and anemia. It says Osmond, who spent 60 years in the entertainment industry was a veteran of the U.S. Armed Forces.

The document also indicated that the actor was cremated. On May 18, the 76-year-old actor who garnered huge popularity for his role of Eddie Haskell on Leave It to Beaver died in his Los Angeles based home with family members surrounding him. The actor's son Eric released a statement, which was obtained by Fox News.

In the recently released statement, Eric describes Osmond as a wonderful father, who had his entire family around him when he passed, adding that he was loved and will be missed. Osmond kicked off his career when he was just 4 years old, working in commercials as well as a film extra.

The Glendale, California, native acquired his first speaking role in a film entitled So Big, Variety reported. He made his appearances in several other films and shows including Wagon Train, Lassie, Fury, The Walter Winchell File, The Loretta Young Show, Everything But the Truth, Good Morning Miss Dove and so on.

He was a part of the hit television sitcom Leave It to Beaver from 1957 to 1963. Osmond's character, which was a crafty teenage crook, Haskell, was originally slated to be a one-off guest appearance. His portrayal of the character was so good and the audience found him memorable, which encouraged the show's producers to bring Haskell in about 100 of the show's 234 episodes.

Tony Dow's Wally Cleaver's best friend and big brother to Jerry Mathers' Beaver Cleaver, Eddie often back-scratched adults and kicked down at his coequals, usually in the same scene, and he was the closest thing the show had to an anti-hero. Regardless of their ages, viewers loved to hate the character.

When the series came to an end, Osmond reprised his role for the TV movie entitled Still the Beaver and the show's revival dubbed The New Leave it to Beaver, which was televised from  1983 to 1989. Interestingly, his real-life sons Eric and Christian played his sons in the hit 80s series. Osmond portrayed Haskell the last time in the film Leave It to Beaver in 1997.