Missouri governor halts man's execution after DNA questions

St. Louis • Missouri Gov. Eric Greitens on Tuesday halted the scheduled execution of condemned killer Marcellus Williams after DNA testing raised questions about whether he actually committed the crime.Just hours before Williams was to be put to death, the Republican governor said in an email that he was issuing a stay of execution. Williams was convicted of fatally stabbing former St. Louis Post-Dispatch reporter Lisha Gayle during a 1998 burglary at her suburban St. Louis home. Williams&r