In re M.K.

OPINION

LEE GABRIEL, JUSTICE

*371Appellant M.K.1 is now fifty-nine years old. The State alleges that on August 7, 1973—when Appellant was fifteen years old—he murdered fourteen-year-old D.R. The State previously filed a delinquent-child petition in juvenile court against Appellant in 1978 alleging that he murdered D.R., but the juvenile court ultimately dismissed the case at the State’s request because of insufficient evidence. According to the State, the ease went cold until 2015, when investigators discovered previously unknown evidence implicating Appellant in D.R.’s murder. The State now seeks…