American actress and naturopathic practitioner Jessica Campbell has died at the age of 38.

Campbell was best known for her role as Tammy Metzler in the Reese Witherspoon-led 1999 black comedy film Election.

Sarah Wessling, Campbell’s cousin, confirmed the news to TMZ. She said Campbell died unexpectedly at her home in Portland, Oregon on December 29.

Campbell worked a normal shift seeing her patients at her practice and returned home to visit with her mother and aunt on the day of her death, according to Wessling.

After reaching home, she went to the bathroom but never came out, Wessling told TMZ. Campbell’s aunt found her collapsed on the floor.

The news outlet said Campbell’s family is awaiting autopsy results to determine the cause of death.

Wessling launched a GoFundMe page to assist in Campbell’s funeral costs and provide income for the actress’s 10-year-old son, Oliver.

The page read, “Traveling the world, acting, becoming a doctor, being Mom to the coolest kid ever; these bucket list items wove the quotidian fabric of her reality. Her passion for life and the people in it was astounding.”

Reese Witherspoon, who played Tracy Flick in Election, reacted to the tragic news of Campbell’s death on Twitter. She wrote, “So heart broken to hear this. Working with Jessica on Election was such a pleasure. I’m sending all my love to Jessica’s family and loved ones.”

Campbell’s earned a nomination for an Independent Spirit Award for Best Debut Performance for her role in Election

Born on October 30, 1982, Campbell also starred in two episodes of the short-lived NBC series Freaks and Geeks as Amy Andrews, a tuba player in McKinley High’s marching band.

She also featured in the 2001 film The Safety of Object and Dad’s Day and Junk, both in 2002. The article originally appeared on PEOPLE.