Who is the serial killer in hackers?

Could you please elaborate on the identity of the serial killer featured in the film "Hackers"? Are we referring to a fictional character or a real-life individual? If it's a fictional character, could you provide some key details about their motivations, methods, and any notable interactions with the protagonists? Additionally, is there a specific scene or moment in the film that reveals the serial killer's identity or actions? Understanding these points would greatly assist in crafting an accurate description.