JEFFERSON CITY, Mo. - One day before the scheduled execution of a Missouri man convicted of killing a state trooper two decades ago, Gov. Mike Kehoe announced his decision to deny clemency.

Lance Shockley, 48, will be executed Tuesday at 6 p.m. for the murder of Missouri State Highway Patrol Trooper Sgt. Carl Dewayne Graham.

Graham was found shot to death outside his home near Van Buren in southern Missouri on March 20, 2005.

The governor's office said that Shockley shot and killed Graham due to the trooper's investigation into him. Officials were looking into his involvement in a crash where Jeffrey Bayless, a passenger in Shockley's car, was killed. Troopers believed Shockley to be under the influence of alcohol at the time.

Shockley was found guilty of first-degree murder and three

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