The author, who was best known for her biography on co-worker and serial killer Ted Bundy, died at Highline Medical Center at 10:30 p.m. Sunday, according to KING 5 News.
Rule's daughter Leslie Rule, mentioned on her Facebook page that her mother had many health issues, including congestive heart failure.
Rule's passion for true crime quickly grew at a young age. At the age of 21, the mother of five worked at the Seattle Police Department then eventually began writing for True Detective Magazine.
According to Rule's website, the author had a BA from the University of Washington in Creative Writing with minors in psychology, criminology and penology. In addidion, Rule has an Associate Degree from Highline Community College, where she took courses in crime scene investigation, police administration, crime scene photography and arrest, search and seizure.
Because of her strong talent in telling crime stories, eight of her books were made into TV movies – including The Deliberate Stranger starring Mark Harmon as Ted Bundy.
According to her homepage, writing wasn't her only interest. She took an interest in animals, gardening, and enjoyed collecting things.
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