SEATTLE -- Ann Rule, a prolific author of true crime works, has died. She was 83.
The exact cause of Rule's death was not immediately known, but was likely related to heart failure, her daughter told Q13 FOX News. Rule was moved to hospice care the day before her death.
Rule is perhaps most known for her first book, The Stranger Beside Me, an account of her time with notorious serial killer Ted Bundy.
A former employee of the Seattle Police Department, Rule's latest book, Practice to Deceive, was about a murder on Whidbey Island.
Rule lived just south of Seattle. Her daughter, Leslie Rule, said her mother was surrounded by loved ones before she died.
Rule has been in the news again recently, as prosecutors filed theft charges against Rule's two sons, alleging they took thousands of dollars from her. Prosecutors separately accuse the sons of raiding their mother’s accounts.