McLOUD, Okla. (AP) _ A woman who went on a 1987 killing spree with her boyfriend dies in an Oklahoma prison from lung cancer.

Prison officials said 46-year-old Mona Lisa Watson of Memphis, Tennessee, died Friday. She was serving a life term at Mabel Bassett Correctional Center.

Her accomplace, Michael Wayne Howell, is on death row in another prison.

Prosecutors said that Howell and Watson killed two convenience store clerks in Memphis before killing a Tinker Air Force Base sergeant in Del City because they wanted to steal her car.