John-Nice-Nice-4

Pre-War Life
John-Nice-Nice-4, or J2N4, was built by Hadrian Robotics as a last-ditch attempt to negotiate the corporations survival under Greater India rule. His name was designed to be as soothing and diplomatic as possible. His brothers, Johns 1 to 3, did not pass Hadrian Robotics rigorous selection criteria, and were destroyed. When Hadrian Robotics arrived at J2N4, they realized that they couldn't keep destroying all their robots if they wanted to have somebody to negotiate with Greater India, and so, J2N4 was hastily shoved onto the diplomatic front lines.

He did not do well, and was recalled by Hadrian Robotics when they realized that he was doing more harm than good. However, in transit back to Hadrian HQ, the war broke out. J2N4 took shelter underneath a parking garage, and was crushed by that same parking garage when the nuclear shockwave hit. Scraping desperately away at the rubble until his fuel ran out, J2N4 began his long sleep under the rubble.

Post-War Life
J2N4's fuel cells would occasionally spark to life over the twenty one years that he was trapped, and he soon came to notice that a cult had sprung up in the ruins of Exeter. Listening to their sermons, he noticed that they preached naught but hatred for mutant-kind, and with nothing else to do, he listening to them, slowly becoming fanatical.

However, J2N4 was a robot, and he realised that where robots could not be affected by the radiation in the slightest, humans could. Humans could transform into inferior mutants, and so, humans were also inferior. He slowly developed a hatred for human-kind, although this was concealed under a mark of helpfulness.

He was discovered by a Mort, Pete Johnson, who helped him out of the rubble. The pair in turn discovered the crew led by Willem Dafoe, who they then helped. J2N4 hid his hatred of the entire rest of the party from everyone, other than the sole other robot, B.O.mk-B.

When they arrived at New Eden, J2N4 saw an opportunity. He began murdering humans, indiscriminately, using his medical training as a protocol droid to kill quietly, and effectively. His so called "friends" were not aware of his true nature, nor that he was only using them to continue his spree of murders. He continued murdering, even after New Eden was liberated. If anything, he began killing more frequently.

He was never caught, until one year, the murders stopped. No one knows where the "New Eden Ripper" went, other than himself.