Sophie Nyweide faced trauma in life, her mother claimed, leading her to substance abuse. An autopsy determined she was pregnant at the time of her death.

Former child actor Sophie Nyweide was pregnant when she died on April 14, according to her death certificate. She was 24. Nyweide was known for the 2009 romance drama "Mammoth," where she starred alongside Gael García Bernal and Michelle Williams.

Vermont authorities are investigating the death of Sophie Nyweide, a former child actor best known for her role in the film "Mammoth," as a possible unintentional overdose, according to a statement released by the Bennington Police Department.