Programmer Dr. Darrel Lindenmeyer of the Law Enforcement Technology Advancement Centre developed SID version 6.7: a Sadistic, Intelligent, and Dangerous virtual reality entity amalgamation of 183 notorious criminal personalities: mass murderers, serial killers, and megalomaniacs. Programmed using genetic algorithms, each of the 183 killers in SID holds the memories, personality/behavioral traits, and emotional composition as the original. Being far too complex to design, Lindenmeyer had SID's program begin with him as a child, having the killers in his subconscious raise him and guide him in the ways of the world.
The killers emerge through the 50 terabyte, self-evolving neural network that is SID through a sort of Multiple Personality Disorder, giving way to the stronger personalities depending on each situation.