Kevin Cooper was found guilty for the 1983 murders of Chino Hill chiropractors Doug and Peggy Ryen, their daughter Jessica, 10, and sleep-over guest Christopher Hughes, 11.
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Kevin Cooper is Guilty
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Kevin Cooper was found guilty for the 1983 murders of Chino Hill chiropractors Doug and Peggy Ryen, their daughter Jessica, 10, and sleep-over guest Christopher Hughes, 11.