max's death, dina continued to investigate, and hired a woman named tara schneider. you are convinced that max died not as a result of the accident but a murder? >> yes, a homicide. >> tara has no law enforcement background. she calls herself an intelligence analyst. she and dina have floated several theories over the years. the current theory, whoever killed max their suspission is focued on information from a neighbour that has never been verified. a story of all wild party at the mansion the night before max's fall. >> he has not been interviewed by the police and has not come forward. >> but what connection it might have to max's death, you have no idea? >> i don't. but i think it should be explored. >> she said police never spoke with a neighbor but we did and he doesn't remember anything about a party. and max's dad, jonah shacknai, who was in the house said that there was no party. jonah says that he never doubted the official investigation, but wanted to rebut the theory offered by dina and others. his lawyers hired the highly regarded investigative firm, krohl, the resulting report says that the evidence is consistent with an accidental, tragic fall. and there is no evidence of foul play, malice, or other non accidental ocurrents. how many people said to you, you need to let this go and move on? >> many. so many. >> even if she'd want