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ST. LOUIS (AP) - Missouri's governor has denied a request for clemency for an inmate who is scheduled for lethal injection for the rape and killing of a neighbor in 1995.

Gov. Jay Nixon's decision comes after the U.S. Supreme Court earlier Tuesday denied Worthington's application for a stay of execution.

Michael Worthington's execution was planned for 12:01 a.m. Wednesday at a prison south of St. Louis.

It is set to be the nation's first execution since one in Arizona last month in which an inmate gasped more than 600 times while he lay on the table and took nearly two hours to die.

The 43-year-old Worthington was sentenced to death for the attack on 24-year-old college student Melinda "Mindy" Griffin during a burglary at her Lake St. Louis condominium.

(Copyright 2014 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.)

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