We'll answer here in case anyone else is planning on having their character do the same! Killing in self-defense will result in about three days in solitary. However, if there's purposeful intent to harm, or it's unclear either way, characters will receive the full six days in isolated confinement. In addition, they'll have extra tattoos on their hands up past their wrists, indicating to other inmates what they've done and that they shouldn't be trusted. Attempting to cover these markings up will only make them glow brighter.