By Cathy ScottNew York real estate baron Robert Durst, who has long been a person of interest in the 2000 murder of Mob daughter Susan Berman and in the 1982 disappearance of his wife first Kathleen Durst, has been seen in Las Vegas on three occasions.Sin City is where Durst's one-time best friend, Susan Berman, grew up Mob royalty as the spoiled daughter of Jewish mobster Davie Berman.Durst was spotted by a patron just before Christmas at a Chinese...
