Paul Glickler, who famously directed and wrote "The Cheerleaders," died. He was 81.

Glickler's sister, Louise G.S. Plaschkes, revealed the saddening news to the public. She confirmed via The Hollywood Reporter that the director died last month, on September 19, at his Topanga home.

The same statement confirmed Paul Glickler's cause of death, saying he died of a heart attack.

The Centers for Disease Control and Prevention estimates that someone suffers a heart attack in the US every 40 seconds, bringing the total number to 805,000 people per year. Glickler ultimately became a victim of the leading cause of death for people in the US.

His sister did not disclose if he was diagnosed with heart disease before his death. Details about where he was laid to rest were also unknown to the public.

Paul Glickler's Legacy

Glickler studied at Cheltenham High School in 1958 and Princeton University in 1962. From there, he moved from Philadelphia to New York, where he worked in a theater.

The opportunity led him to become producer Arnold Michaelis' assistant before becoming the production manager in the 1967 CBS documentary, "Gauguin in Tahiti: The Search for Paradise."

His then-wife, Cabell Smith, accompanied him as he traveled across the US to record a documentary about Native American tribes. Unfortunately, he failed to complete the project.

In 1971, he co-directed and co-wrote "Hot Circuit" alongside Richard Lerner, who also worked with him in "Revenge of the Cheerleaders." It served as one of the two quick features that were made after the release of "The Cheerleaders."

The film starred Stephanie Fondue, Denise Dillaway, and Jovita Bush, and it explored the story of Amorosa High School cheerleaders who have intercourse with the opposing team's football players to make them feel tired before a big game.

Glickler's IMDb page added that the director was also known for his work in "Running Scared." Among the other titles under his belt included, "Parlor Games," "Hot Circuit," and "Cannonball."

His colleagues and fans all over the globe expressed their heartbreaks upon learning the news.

Lerner said on Facebook, "Paul had so many wonderful attributes. His unselfishness, intelligence, general know how, and super Aquarian altruism, always helping people in multiple ways: repairing and building, advising others on a myriad of life situations and subjects. We were both born on February 13 and shared so much over five decades."