jamyra gallmon of washington was arrested last week and charged with first-degree murder while armed for allegedly killing david messerschmitt , 30 , on february 9 at the boutique donovan hotel .
according to a police affidavit filed in court on thursday , she stole just $ 40 and the victim 's metro smartrip card , while dominique johnson , left , has been charged with conspiracy to commit armed robbery .
she has been charged with conspiracy to commit armed robbery .