Music teacher charged with murder, rape in death of sister-in-law on Long IslandStacey Sager has more on the disturbing details revealed in court on Wednesday. Stacey Sager has more on the disturbing details revealed in court on Wednesday. Stacey Sager has more on the disturbing details revealed in court on Wednesday. LONG ISLAND (WABC) -- A man on Long Island is officially charged in the killing of his sister-in-law. Disturbing new details were revealed in court on Long Island on Wednesday.