The family of a worker trampled to death in a "Black Friday" crush of bargain hunters at a Long Island Wal-Mart store filed a wrongful death lawsuit on Wednesday, claiming store ads offering deep discounts "created an atmosphere of competition and anxiety" that led to "crowd craze"…In addition to Wal-Mart, the adjacent Green Acres Mall, a realty company that manages the property and a security firm hired to patrol the property were all named as defendants. None immediately responded to phone and e-mail inquiries seeking comment on the lawsuit…