Model, actor and fitness trainer Dirk Shafer was found dead in his car on Thursday in West Hollywood. He was 52.

Law enforcement officials identified Shafer by his driver's license. Initial reports indicate that he might have died from a heart attack, but an autopsy has been ordered to determine the cause of death.

The Illinois native documented the pressure he felt to remain closeted as Playgirl's 1992 Man of the Year in the 1995 mockumentary Man Of The Year, a largely fictionalized account which he wrote and starred in.

Shafer also co-wrote and directed the 2001 cult film Circuit, which takes a look at the gay circuit party scene. In the same year, he did a guest stint on the NBC comedy Will & Grace.

In 2012, he returned to Playgirl to celebrate the 20th anniversary of his first layout.