JOHNSTON, S.C. -- Authorities say they have arrested a 23-year-old woman in a shooting death in Johnston.

Police said Ashley Butler is charged with murder in the death of her live-in boyfriend, 25-year-old Otis Key Jr.

Investigators say Key was shot in the chest around 11:30 a.m. Friday in the home the couple shared after an argument.

Butler is being held at the Edgefield County jail. It wasn’t known if she had an attorney.