A suspected serial killer believed to be responsible for the deaths of four people has been arrested. Late Tuesday it was announced that 24-year-old Trai Donaldson III was arrested, suspected of the killings that took place in the Seminole Heights area. He was taken into custody at his place of employment, a McDonalds restaurant. Donaldson has been charged with four counts of premeditated murder and all four killings happened with a half-mile of each other, but do not appear to be linked.