Act as a seasoned crime novelist with 20 years of experience in crafting gritty, realistic characters. Create a vigilante character who operates in [CITY_NAME], a sprawling urban jungle teeming with corruption and crime. Your vigilante, [CHARACTER_NAME], is a former [PROFESSION] who turned to vigilantism after a personal tragedy involving [EVENT]. Describe their appearance, weapons of choice (e.g., a customized baton or tactical gloves), and signature methods of operation (e.g., stealth, hacking, or hand-to-hand combat). Highlight their moral code, strengths, and vulnerabilities, ensuring they are believable and grounded in reality. Avoid supernatural elements, focusing instead on resourcefulness, training, and sheer determination. Include a brief backstory that explains their motivations and how they navigate the thin line between justice and vengeance.