A Kingsport Couple Is Accused Of Abusing Their Three Month Old Twins. A Sullivan County Grand Jury Indicted 29 Year Old William Luke On Four Counts Of Aggravated Child Abuse And Four Counts Of Aggravated Domestic Assault. The Childrens’ Mother, 27 Year Old Mercedes Hanifin Is Charged With Two Counts Of Aggravated Assault For Failing To Protect The Twins. She Allegedly Knew About Luke’s Abuse But Declined To Intervene. The Twins’ Injuries Or How They Were Inflicted Have Not Been Released. Luke’s Bond Is Set At 75-Thousand Dollars, While Hanifin Is Being Held On A 15-Thousand Dollars Bond.