The Cocky Black Belt Thought a Pool Cleaner Would Be an Easy Opponent, Never Knowing He Was a Former Army Ranger Instructor

The few staff who noticed the scars on his forearms assumed they were chemical burns from years of chlorine. Patrick never corrected them. He did not tell them that 22 years in the United States Army had left marks that no pool chemical could explain.

And he absolutely did not tell them that before he ever picked up a pool net, he had spent his final decade as a senior combatives instructor at Fort Benning. Not just basic, the advanced course, the one where soldiers were taught to survive hand-to-hand when the rules disappeared.

Why would a man like that scrub tiles for a living? Maybe because after two decades of teaching other people how to kill, he wanted to spend his days in the sun doing something that would not follow him into his sleep. But he still needed a place for the old skills to go.

That place was a converted brick warehouse on the south side of town. No sign, no website, just a heavy steel door and a room full of mats, heavy bags, and a group of a dozen or so students who knew him only as Mr. Patrick.

At the club, Jacob Harlo did not know any of this. Jacob was 19, home from his freshman year at a private university in Atlanta, and he had just earned a black belt from a strip mall karate school that advertised on late night television.

He wore it like a crown. He drove his father’s black BMW into the club parking lot with the top down. He walked across the pool deck barefoot, chest puffed, sunglasses pushed back into his blonde hair, while a rotating pack of friends filmed him with their phones.

Jacob liked to perform, and the performance always needed a victim. Early in the summer, he had knocked an older groundskeeper’s rake off a cart and then laughed when the man bent to pick it up. Another time, he kicked a stray pool noodle at one of the teenage lifeguards, hitting her in the arm. Nobody reported him.

Jacob’s father, Steven Harlo, was a major donor to the club and sat on its board. Dennis Halpern, the manager, made sure every complaint about Jacob died before it reached the front office. But Jacob’s favorite target was Patrick.