Execution halted in US after DNA testing raised questions over inmate's guilt

Marcellus Williams granted stay just hours before he was due to be put to death after tests on knife used in stabbing showed DNA of another person The governor of Missouri halted the scheduled execution of condemned inmate Marcellus Williams after DNA testing raised questions about whether he was guilty. Just hours before Williams was to be put to death, Republican governor Eric Greitens said in an email that he was issuing a stay of execution. Williams was convicted of fatally stabbing former S...