Whether the Supremacy Clause preempts state prosecution of a criminal defendant for killing a postal worker when Congress enacted 18 U.S.C. § 1114 to address such crimes

Whether the Supremacy Clause of the United States Constitution preempte d the State of Missouri from the prosecution of a criminal defendant for the killing of a postal worker performing their official duties when Congress enacted 18 U.S.C. § 1114 to address such crimes. ii LIST OF PROCEEDINGS U.S. District Court, Eastern District of Missouri : United States v. Durham , No. 87 -190Cr(5) (Feb. 24, 1988) (entering judgment of conviction after jury trial) _ Circuit Court of the City of St. Louis, Missouri : State v. Durham , No. 871 -1409A (Nov. 3, 1989) (entering judgment of conviction after jury trial) _ Circuit Court of St. Francois County, Missouri : Durham v. Adams , No. 23SF -CC00027 (Mar. 29, 2024) (denying habeas corpus relief) _ Missouri Court of Appeals, Eastern District : Durham v. Adams , No. ED112802 (Jul. 15, 2024) (denying habeas corpus relief) _ Missouri Supreme Court : Durham v. Adams , No. SC100678 (Sept. 3, 2024) (denying habeas corpus relief)