It had only been a few weeks, maybe a month, since Jose Camacho had been relieved of his prison shackles and stepped off a U.S. immigration bus into the dusty streets of Ciudad Juárez to set about building a new life south of the border. That’s when an old friend showed up. Not a friend, really — someone he knew. A guy he’d met on the inside. “Let’s get a beer,” he suggested. Camacho didn’t drink anymore, and he told the guy so. But the guy was persistent. Squinting over the guy’s shoulder, Camacho could see someone else in the car, a man he didn’t know, but he recognized the tattoos. This wasn't an invitation.