CHEYENNE, Wyo. (AP) — The Wyoming Supreme Court has overturned a Buffalo man's second-degree murder conviction.

Richard Wilkerson was convicted in April 2013 for a bar fight that led to the death of Brian Newman. Wilkerson had punched Newman on the side of the head, and Newman fell off a bar stool and struck his head.

Wilkerson and his defense attorney, John Robinson, contended the conviction on second-degree murder was too harsh. They argued a second-degree murder conviction should only be imposed if someone had an extreme indifference to the value of human life.

The Supreme Court reversed Wilkerson's conviction Friday.

Kenneth DeCock, prosecuting attorney for Johnson County, tells the Casper Star-Tribune ( ) that he's re-evaluating the case.