Upham and participated in the film (Auguste Osage County) last year and played the role of a nurse caring for a patient with cancer embodied American actress Meryl Streep.
Said Tracy Rector, one of the members of the team formed by the Upham family to search for and became a spokeswoman for the family said the young actress was suffering from anxiety disorders and was not under the influence of any drugs when he told her father about the loss.
She added that the Upham family do not feel that they committed suicide because the area that fell then apparently saw the fall of many before.
Upham was nominated for the Independent Spirit Award for Best Supporting Actress for her role in the movie (Frozen River) in 2008.