In one year the entire world will turn its attention to Dallas to mark the fiftieth anniversary of the murder of John F. Kennedy. The mayor hopes to show off a city that has evolved into a sophisticated global destination. But when it comes to the assassination, nothing is as simple as it seems—and that is why Dallas is so worried. by Mimi Swartz. TexasMonthly.com Unlike so many people who have become part of the Dallas narrative, Robert J. Groden doesn’t radiate the aura of a winner. He is a paunchy 67-year-old nebbish who drives a PT Cruiser and loves dining at Red Lobster. He is tall, but he slouches. His color isn’t good, probably because, by his account, he suffers from three kinds of heart disease. His shaggy hair, doleful eyes, and chronic wince give him the mien of a man locked in a perpetual if not entirely painful state of mourning, which actually happens to be the case. Groden has devoted most of his adult life to exposing what he believes to be a diabolical conspiracy to kill John F. Kennedy. In better times, he wrote best-selling books on the subject, assisted the House Select Committee on Assassinations,…

