andrew huffman. >> andrew huffman is the biological father of the 4-year-old little boy that jack and linda have custody of. their relationship was strained from the beginning. >> huffman had refused to pay child support for johnny. >> andrew did not like my mother. she made him very angry, because she would not let him be around johnny. it escalated to just a heated argument. and he threatened to kill her. >> after an exhaustive search, investigators found andrew huffman in another state. >> we were able to put a timeline together. he was placed at his own residence in kentucky. would not give him enough time to get up to greenville, ohio. >> so huffman was eliminated as a suspect. another family member holding a grudge was jack myers' 25-year-old son, greg. greg was divorced and going through some financial difficulties. he was missing work due to some drug and alcohol problems. his house was about to be foreclosed. so he asked his father for help. >> he didn't come out and say, no, i'm not helping you. it was like, greg, stay off the drugs and alcohol, go to work every day, pay you