McDonnell won't stop Walker execution

Gov. Bob McDonnell has denied clemency for a Virginia man convicted in two separate shooting deaths.

McDonnell said Saturday he found no compelling reason to stop Thursday's scheduled execution of 37-year old Darick Demorris Walker.

Walker was convicted of killing Stanley Beale in 1996 and Clarence Elwood Threat in 1997. Virginia law allows the death penalty for anyone who commits two premeditated murders within three years.

Walker's attorneys have said his mental capabilities do not meet the constitutional threshold for execution. They also argued that prosecutors withheld evidence that cast doubt on the eyewitness testimony of one of the victims' daughter.

-- The Associated Press