Neil

The lab that he was working for created a teleporter that was malfunctioning and giving its users mutations that turned them into savage monsters. The lab staff decided that all the infected people should be dropped off on their old testing site - a small island. Neil continued to work for the lab for a few years after this incident. Then, the last few survivors from the island managed to contact the lab and arrange a trade in which they would get mutation slowing medicine in exchange for a person that mutated in a way that gold grew on him. The lab agreed and wanted to speed up his mutation to research the golden gene which would most likely kill the test subject, and Neil didn't want to let that happen. He decided to help the test subject escape and ran from the lab with him. They came back to the island, where Neil got attacked by a mutant and lost his legs. People from the island were able to save him but he needed to use the malfunctioning teleporter in the process. Later on Neil managed to duplicate the medicine from earlier trade, so it bought island people some time to live.

Almost a year later a stranger named Kell came to the island looking for his friend - Louis. Kell wanted to illegally bring Louis back to the city, but Louis only agreed on the condition that Kell will help all of the island people get back as well. Neil didn't think it was a good idea to leave the island because the police could notice them, and most importantly they could become agressive mutants later on and be dangerous to others, but he was outvoted by the others. After he was dragged back to the city he had no choice but to live in the part of the city that was basically ruled by bandits. These bandits also stole the teleporter which was used to bring them back to the city. Island people tried to get the teleporter back from the bandits which resulted in a fight which resulted in teleporter exploding and spreading mutation radiation on the whole city. Neil went back to the lab that he used to work in to tell the staff that they need to do something about the radiation, but instead he was arrested. Then his island friends broke him out of the lab's custody and somehow managed to lead the guards to the teleporter remains and explain the situation. Then the lab agreed to make meds that will stop the mutation completely and Neil and the rest of island survivors were allowed to go back to the city oficially.