"Superman" actress Margot Kidder's death has been ruled a suicide, and her daughter said Wednesday it's a relief to finally have the truth out.
Kidder, who was born in Yellowknife and played Lois Lane opposite Christopher Reeve's Superman in her most famous role, was found by a friend in her Montana home on May 13.
At the time, Kidder's manager, Camilla Fluxman Pines, said Kidder died peacefully in her sleep.
A statement released Wednesday by Park County coroner Richard Wood said the 69-year-old Kidder "died as a result of a self-inflicted drug and alcohol overdose" and that no further details would be released.
Maggie McGuane, Kidder's daughter by her ex-husband Thomas McGuane, told The Associated Press in a phone interview that she knew her mother died by suicide the moment authorities took her to Kidder's home in Livingston, a small town near Yellowstone National Park.
Kidder's death is one of several high-profile suicides this year that include celebrity chef Anthony Bourdain and fashion designer Kate Spade.