Georgia's highest court has reversed it own recent decision and restored the murder conviction of a woman whose husband shot and killed a police officer.

The Georgia Supreme Court issued a new opinion Monday that upholds Lisa Ann Lebis' felony murder conviction in the 2012 slaying of Clayton County police officer Sean Callahan.

Barely a month ago the same court had axed Lebis' conviction, saying prosecutors failed to prove she "jointly possessed" the gun that her husband, Tremaine Lebis, used to kill the officer as the couple tried to flee a Stockbridge motel.

The new decision concludes that Lisa Ann Lebis could still be held accountable for the slaying as a co-conspirator.

The opinion Monday does not say why the high court chose to revisit the case.