empty lot there and that's where he buried him. >> he did not spare the detail, said nancy. >> he did tell me he poured some corrosive on him. >> that was consistent with the investigation. >> david disappeared as he w preparing for a visit from his 5-year-old son john. >> they decided that david needed to be gotten rid of because they never wanted david to be in johnny's life. >> david was murdered in cold blood just to keep him out of his son's life. >> and boom, it clicked for me all of a sudden i said wow, that's over child custody. that's why he's not here today. >> that was the motive. >> that was the motive. >> but was wolf's confession to an ex-wife a true story or alcohol fuelled bravato? there was no way to know for