A Prince George's County grand jury has indicted a 27-year-old Maryland man that police have alleged is a methodical serial killer.
Former UPS worker Jason Thomas Scott of Upper Marlboro is charged with with two counts of first-degree murder in the March 2009 slayings of nurse Delores Dewitt and her 20-year-old student daughter, Ebony.
The two women were found in a burning car that had been stolen.
Police say those killings are linked to a January 2009 slaying of another Prince George's County nurse mother and student daughter who were found shot to death inside their locked home.
An FBI profiler had concluded last year that the two slayings weren't connected. Police say Scott masked his crimes to throw off investigators.
Scott is in custody on federal gun and sex charges.