A septuagenarian identified as Mallam Mohammad, has been arrested for raping a nine-year-old girl in Chanchaga area of Minna, Niger State.   Mohammad, who migrated to Chanchaga from Zamfara State, was apprehended on Thursday, July 9. The mother of the victim who spoke with Sahara Reporters, said Mohammad had been raping her daughter since February this year and had threatened to kill her daughter if she ever discloses what he does to her.   “I was sick, my daughter was also …