The First 48 Synopsis: In Memphis, a truck fire brings Sgt. William Ashton and the homicide team to the scene of a double murder. When the smoke clears, Ashton must track down a series of suspects in pursuit of the killer. In Kansas City, Kansas, Det. Bill Michael works the murder of a woman found dead in the street. With few leads to go on, he's wondering how to find the killer when anyone could be a suspect.