PITTSBURGH (AP) — A woman has been charged in the stabbing death of her boyfriend in Pittsburgh.

Fifty-two-year-old Cassandra Locke of McKeesport was charged Wednesday with homicide in the death of the 49-year-old victim, whose name hasn't been released.

Police say he was stabbed in the chest in a third-floor apartment on the city's South Side, then made his way into the lobby of the building and collapsed. He was pronounced dead shortly after 11:30 p.m. Tuesday at UPMC Mercy.

WTAE-TV reports that police said in a criminal complaint that a video shows Locke outside a trash room on the third floor "holding a knife in her hands in the presence of the victim."

Court documents don't list a defense attorney and a listed number for Locke couldn't be found Wednesday.