US

Oklahoma executes man for 1995 death of co-worker during Tulsa convenience store robbery

This June 29, 2011 photo provided by the Oklahoma Department of Corrections, shows Michael Lee Wilson. Convicted in the 1995 beating death of 30-year-old Richard Yost, Wilson is scheduled to be executed by lethal injection Jan. 9, 2014. Wilson was one of four men found guilty in the Feb. 26, 1995 murder. (AP Photo/Oklahoma Department of Corrections)

This June 29, 2011 photo provided by the Oklahoma Department of Corrections, shows Michael Lee Wilson. Convicted in the 1995 beating death of 30-year-old Richard Yost, Wilson is scheduled to be executed by lethal injection Jan. 9, 2014. Wilson was one of four men found guilty in the Feb. 26, 1995 murder. (AP Photo/Oklahoma Department of Corrections)  (The Associated Press)

The last of three men sentenced to die for the murder of a Tulsa convenience store clerk has been executed in Oklahoma.

A state prisons spokesman says Michael Lee Wilson died at 6:06 p.m. Thursday.

Wilson and three other men were convicted of killing Richard Yost in February 1995. One man is serving a life term.

Wilson had worked with Yost. Prosecutors said Wilson knew two weeks before the robbery that Yost would die, yet still made small talk with him in the minutes leading up to the attack.

Yost was struck 54 times with a baseball bat. Prosecutors said Wilson put on a work uniform and waited on customers while Yost died in a puddle of blood, milk and beer in the back of the store.