MSNBC Dateline July 6, 2024
her last words. >> two sisters with a single purpose -- solve the mystery of their mother's death. >> we can't let this go. it's heartbreaking. >> she'd left for hawaii, a new life, with a new husband. but the sunny paradise soon grew dark. >> something was very wrong it was horrible being so helpless. >> what was behind their mom's strange death? they set out together to discover the answer. and they were about to get some help from their mother herself. >> there it was. evidence she left for you to find? >> yes! >> a possible clue. hidden, in an envelope marked "baby pictures. " bu...