A week after stunned Tribeca woke up to news of a grizzly death in which a Citigroup managing director living on Greenwich Street was found dead in his bathtub with a slashed throat and the lack of a suicide weapon on the scene suggesting there was foul play involved, another banking executive was killed over the weekend, when 54-year-old Melissa Millian, a senior vice president at MassMutual, was found lying in a road in Simsbury, Connecticut, having been stabbed in the chest.