Modifies provisions relating to proceedings resulting from criminal conduct

HB 2747 modifies Missouri's criminal trial procedures for first-degree murder cases involving the death penalty. It establishes a two-stage trial process: the first stage determines guilt, and the second stage (only if the death penalty wasn't waived) decides sentencing based on aggravating/mitigating factors. The bill specifies that life imprisonment without parole must be imposed if the defendant is intellectually disabled, no aggravating circumstances are proven, or the jury cannot unanimously agree on the death penalty. It also defines "intellectual disability" and applies only to offenses committed on or after August 28, 2001. The bill does not address expungement procedures, despite references to related sections in the text.