for her. >> my suspicions are growing and growing by the minute. >> so who was behind all this? plenty of suspects, and plenty of motives. anger, jealousy, greed, someone had 10 million reasons to kill. >> we look back and said my god, i couldn't believe what i saw. >> you're not going to believe it either because in this case there is a final terrifying twist. >> i see the you bar. . >> hello and welcome to "dateline." ben novak jr. was a successful entrepreneur and the son of a wealthy miami businessman. then he was found bound and hit to death in a hotel room. who wanted him dead?