Cheryl Keeton was a Portland, Oregon

Portland, Oregon

Portland is a city located in the Pacific Northwest, near the confluence of the Willamette and Columbia rivers in the U.S. state of Oregon. As of the 2010 Census, it had a population of 583,776, making it the 29th most populous city in the United States...

 lawyer whose long bitter divorce from her husband, Brad Cunningham, and the famous trial that followed her 1986 murder inspired true crime writer, Ann Rule

Ann Rule

Ann Rule is an American true crime writer.-Personal life:Ann Rule was born on October 22, 1935 in Lowell, Michigan to Chester R. "Stack" Stackhouse and Sophie Hansen. Her mother was a school teacher, specializing in developmentally disabled children and her father was a basketball, football and...

, to write her 1995 best seller, Dead By Sunset

Dead By Sunset

Dead By Sunset is a 1995 true crime nonfiction book by author Ann Rule. It is based on the 1986 Oregon case of the murder of Cheryl Keeton, who was found beaten to death inside her van on the Sunset Highway and the later conviction of her estranged husband, Brad Cunningham...

.

Film

Dead by Sunset (1995) was a made for television movie that aired on the television network Lifetime

Lifetime

Lifetime may refer to:*Life expectancy, the length of time a person is expected to remain alive*Mean lifetime, a certain number that characterizes the rate of reduction of a particle of an assembly...

. It was based on Anne Rule's true crime best selling novel.

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