Thrown napkin helps solve 32-year-old rape-murder case in US
A discarded napkin at a restaurant has helped investigators crack the murder case of a 12-year-old girl in the US in 1986. The napkin was used to match DNA of the 66-year-old man who had raped and murdered the girl in a park. Investigators had collected DNA from the crime scene, which helped locate the accused's kin and the accused. 