Marcellus Williams was backed in his appeals for clemency by St. Louis County Prosecuting Attorney Wesley Bell.

Marcellus Williams was executed by the state of Missouri on Tuesday, Sept. 24, despite concerns citing his potential innocence. Williams died by lethal injection shortly after 6 p.m. at a Missouri state prison in Bonne Terre,

The Missouri Supreme Court and Gov. Mike Parson have declined to halt Tuesday’s execution of a death row inmate prosecutors say may be innocent, leaving his fate in the hands of the US Supreme Court with less than 24 hours to go before he is scheduled to die by lethal injection.