Michael Lee Wilson, convicted of 1995 murder of Richard Yost in Tulsa, executed Thursday

TULSA - A man convicted of murdering a Tulsa convenience store clerk nearly 20 years ago was executed on Thursday evening.

Michael Wilson, 38, was executed shortly after 6 p.m. at the state penitentiary in McAlester.

On February 26, 1995, a group of men barged into the Quiktrip near I-244 & Garnett and beat 30-year-old store manager, Richard Yost, to death with a metal baseball bat.

The beating, which took place inside the store's cooler, was captured on surveillance video.

The gruesome crime still haunts retired Tulsa police detective Mike Huff.

"This is one you can't forget," said Huff. "You could hear this torture this man's going through and it just really sticks with you."

Almost immediately, police suspected Yost's co-worker, Wilson, was in on the crime.

They believed Wilson conspired with the men to rob the store and silence Yost.

"Here's [Wilson] running the cash register while they're beating [Yost] to death," said Huff.

Yost left behind a wife and two young children.

Police arrested four men, including Wilson.

All four were convicted of murder.

Three of the men were sentenced to death.

Wilson was the last of the men to be executed.

A fourth convicted murderer was sentenced to life in prison.

Wilson's last meal included a stuffed crust pizza, Cherry Dr. Pepper, a pomegranate and cherry mash candy.

Wilson's execution was the first execution in Oklahoma this year.

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