It happened at Chill's Bar on East Main Street in Duncan.
Police say victim Curtis Torrey and his his friends allegedly started fighting with another group of friends.
According to authorities, Torrey cracked his head on a pool table after he was punched and fell down.
He was then flown to OU medical in Oklahoma City where he was treated and was removed from life support a few weeks ago.
He died shortly after.
No arrests have been made at this time.
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