ATLANTA (AP) -- Clemency has been denied for a Georgia death row inmate who is set to be executed tonight.<br />
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The State Board of Pardons and Paroles denied clemency for Andrew Howard Brannan on Monday. Brannan is set to die Tuesday at 7:00 at the state prison in Jackson.<br />
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Brannan, who's 66, was convicted in the January 1998 slaying of 22-year-old Laurens County sheriff's deputy Kyle Dinkheller. Authorities say Brannan shot Dinkheller several times during a traffic stop.<br />
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Brannan's lawyers have argued that he suffers from mental illness that can be traced directly to his military service in Vietnam and should be spared execution.<br />
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The Parole Board is the only entity in Georgia with the authority to reduce a death sentence to life without parole.