State of Missouri v. Troy Jackson-Bey

Summary

The court affirmed Jackson-Bey’s convictions, holding that the surveillance video was properly admitted, that sufficient evidence supported the first-degree assault conviction, and that plain-error review of the assault verdict director was waived. It also held that age is not an element of first-degree murder because age affects punishment rather than the definition of the offense, and the defendant bears the burden of establishing juvenile status if disputed.