Nicky Katt’s cause of death has been revealed.

The actor, best known for “Dazed and Confused” and the Fox series “Boston Public,” died by suicide in his Los Angeles home.

Law enforcement sources exclusively told TMZ that the 54-year-old’s body was found hanging in his apartment bedroom on April 8. Katt’s landlord was the one to discover him.

Five days before Katt was found dead, his landlord visited the apartment to remind him that rent was due.

Per TMZ, Katt did not leave a suicide note. His apartment door was left open, but by the time his landlord discovered him, he was believed to have been dead at least a day.

Born on May 11, 1970, in South Dakota, Katt got his start on TV with small roles on shows like “Quincy, M.E.,” “Father Murphy,” “Fantasy Island” and “CHiPs.” His big break came in 1993 when he snagged the role of Clint Bruno in “Dazed and Confused.”

Nicky Katt in New Line Cinema’s “Boiler Room” in 2000 (David Lee/New Line)Getty Images

For the next decade, Katt continued to pick up steady work. From 2000 to 2002, he appeared on 49 episodes of “Boston Public” as geology teacher Harry Senate. When the show ended, Katt was seen less, but still scored roles in major films like “School of Rock” and “Sin City.” He also made appearances on TV shows like “King of the Hill” and “Monk.”

Katt’s last listed acting credit was on an episode of the 2018 Hulu series “Casual.” He was once married to a woman named Annie Morse from 1999 to 2001, but they divorced.