In February 1946, thirty-four-year-old World War II veteran Jacob Rubenstein stepped off the train onto the freezing platforms of Chicago, carrying a good conduct medal on his chest and hoping his honorable service had finally cleansed him of his chaotic childhood. Instead, his return plunged him straight into a toxic family business feud. Joining forces with his brothers Sam, Earl, and Hyman at Earl Products, Jacob took charge of sales for their lucrative gray-market punchboard operation. But his volatile temper, refusal to travel to secure regional accounts, and constant screaming matches with his brothers soon pushed the partnership to its absolute breaking point, ending in a cold, transactional $14,000 cash buyout that cast Jacob out of the family fold once again.
Devastated by the family rejection, Jacob drifted back onto the Chicago streets, his nerves frayed and his hair-trigger temper balanced on a razor's edge. His fierce sensitivity to anti-semitism remained completely unchanged by his years in uniform. In late 1946, a downtown street confrontation with a stranger who hurled a bigoted slur erupted into a savage daylight brawl. Jacob returned home hours later, his hands swollen and raw, and his expensive tailored suit completely drenched in blood. It was a violent warning sign that the pavement of his youth was offering nothing but reminders of his own failures, and Chicago was rapidly becoming too small for a man drowning in his own violent impulses.
Jacob’s escape hatch came from his closest sibling, his sister Eva Grant, who had moved to the booming, wide-open city of Dallas, Texas, to open the Singapore Supper Club. Divorced, broke, and struggling with construction delays, Eva desperately needed capital and family muscle to manage the rough-and-tumble Dallas scene. Backed by his buyout cash and additional family financing, Jacob packed his bags in late 1947 and headed south into a massive cultural shock. He entered an oil-rich city trying to project an image of clean, white, Protestant conservative sophistication—a place deeply suspicious of outsiders, especially Jewish Yankees from Chicago.
To survive and thrive in the cutthroat Texas nightlife, Jacob made a drastic, identity-altering decision. On December 30, 1947, he formally petitioned a Dallas court to legally kill Jacob Rubenstein and birth a brand-new man: Jack Leon Ruby. Yet, even as he shed his skin to appease Texas prejudices, he refused to let go of his past. By choosing the middle name Leon, Jack carried a silent, lifelong tribute to his murdered Chicago union mentor, Leon Cook. Equipped with a new name, a flashy Texas suit, and a pocketful of cash, Jack Ruby was ready to conquer the Dallas night—but the volatile, quick-tempered brawler of Morgan Street was still lurking just beneath the surface.
