Nightwalker

The Nightwalkers were the result of an experimental viral agent which went off in the city of Medina. They have a painful intolerance for UV Radiation, so during the day, they hide in the ruins of buildings. The Nightwalkers exhibit superhuman agility, speed and strength. Surviving humans abandoned the city until a cure could be found. Used a biodome, they sealed the plague inside the city. In 2072, scientists in the United States found a cure for the virus.