James V. Cullum, 21, of Sikeston, right, was formally charged with first degree murder and armed criminal action for the stabbing death of his ex-
girlfriend, Tishania T. Walker, 20, of Sikeston during his arraignment Tuesday in the Scott County Associate Circuit Court, Division 5. Associate Circuit Court Judge David Mann set Cullum's preliminary hearing for Aug. 2 and ordered him to remain in custody without bond.