Testimony Will Resume This Morning In The Double Homicide Trial Of A Johnson City And Her Daughter. On Wednesday, An Abingdon Woman Testified For The Prosecution In The Trial Of Her Mother And Sister. Christie Groover, The Oldest Daughter Of Marvin And Barbara Potter And Jenelle’s Only Sibling, Said The Big Falling Out With Her Family Was Around 1999, Although She’d Had Conflicts With Them Since She Was A Teen Growing Up In Pennsylvania. Assistant District Attorney Dennis Brooks Asked Groover About Her Father’s Alleged Work With The CIA Which Was Referred To In Emails The Jury Will See Later In The Trial. Janelle Potter And Barbara Potter Are Each Charged With Two Counts Of First Degree Murder In The Shooting Deaths Of Billy Payne Jr. And Billie Jean Hayworth In 2012. The Trial Is Expected To Last Through The Rest Of The Week.