According to the court documents, the 27-year-old defendant, later identified as Cody, told prosecutors that he beat his 18-year-old sister to death behind a local elementary school.
Prosecutors said the defendant and his sister, Heather, were reportedly in a inc3stuous relationship. During an interview with investigators, the defendant allegedly admitted to in-est and murder.
According to the court documents, family members were reportedly aware that the relationship had carried on for years.