BATON ROUGE - The Baton Rouge Police Department said a man killed in a stabbing Tuesday night was beating an ex-girlfriend prior to being stabbed.

Robert Gibson, 44, was found dead in the parking lot of Lakeside Villas Apartments off Millerville Road. Officers said two people were detained and detectives learned the incident was domestic in nature.

BRPD said one of the people detained was Gibson's ex-girlfriend and that Gibson was "battering" her when she armed herself with a knife and stabbed him.

The incident remains an active investigation.