A 58-year old man identified as Mallam Aminu Ado, has been arrested by men of the Nigeria Police for impersonating the widow of the late Chief of Staff to the President, Abba Kyari, in a bid to swindle unsuspecting Nigerians.   Spokesperson of the Nigeria Police Force, DCP Frank Mba, who paraded him before newsmen on Monday, June 22, said after the death of the former chief of staff, Ado who is also known as Al Amin Yerima, went on to impersonate the widow …