Supreme Court allows Missouri to proceed with the execution of death row inmate Marcellus Williams ABC NewsA Missouri inmate is set to die tonight after the US Supreme Court rejected his appeal CNNSupreme Court allows Missouri to execute Marcellus Williams The HillMarcellus Williams Denied Clemency, Will Be Executed Tuesday, His Lawyer Says PEOPLEAttorney Statement: Missouri Governor Denies Clemency to Marcellus Williams Innocence Project