Rashida Williams, Air Force member, charged in boyfriend's stabbing death

(CBS/AP) ST. PETERSBURG, Fla. - Rashida Williams, an active duty U.S. Air Force member, is being charged with second-degree murder after reportedly calling 911 early Saturday stating she had stabbed her boyfriend in the chest.

Investigators believe the 22-year-old Williams was having an argument about money with her boyfriend, Charles Marion Drummer, 23, prior to the stabbing.

Drummer was found dead in Williams' apartment at around 5:30 a.m. on April 13 and detectives say the knife used in the crime was found in the kitchen sink.

Williams is an airwoman at MacDill Air Force Base in Tampa. Military investigators will also be conducting an investigation.

Police say Williams' boyfriend was from Chicago and had been staying with her about one week.