Police arrive at a murder scene at 3:00 AM and immediately record the body's temperature which was 95F. At 5:00 AM, after thoroughly inspecting and fingerprinting the area, they again took the temperature of the body which had dropped to 84F. The temperature of the crime scene has remained at a constant 74F. Determine when the person was murdered. (Assume that the victim was healthy at the time of death. That is, assume that the temperature of the body at the time of death was 98.6F.)