the official investigation was over. the crime scene tape and evidence marker long gone. that said, an unofficial search for clues was just beginning. online message boards buzzed, with their is from the far fetched to the implausible. through it all, rebecca sister mary didn't buy the official finding of suicide. >> was she fragile? was she easily upset? it's a potential person that will fall apart after a crisis? >> not at all. if she is very upset to where she doesn't want to deal with the situation or feel like she can't handle it then she will go work out. and so she comes up with the situation and then deal with the situation. if she doesn't think she can, then she will move on. >> so when detectives said that voice mail, the one jonah shacknai left for rebecca with a grim news about max, may have caused rebecca to hang herself, mary wasn't having it.