Final answer:
In the Wayne Williams case, key evidence included forensically matched fibers and dog hairs, as well as testimonies about a splash heard the night Williams was spotted on a bridge. The case relied heavily on advanced fiber analysis technology, but continued to draw debate regarding the investigation's integrity and Williams's full involvement in the crimes.
Step-by-step explanation:
The Wayne Williams case involved key evidence that led to his conviction in relation to a series of murders in Atlanta, Georgia, known as the Atlanta Child Murders. Although there were no witnesses to the crimes, the evidence included fibers and dog hairs found on the victims' bodies that were forensically matched to samples from Williams's home, vehicles, and even his dog. Furthermore, witnesses testified hearing a splash into the river the same night Williams was stopped on a bridge, leading to the conclusion that he may have been disposing of a body, though a body was never found in that instance. Advanced technology in fiber analysis played a crucial role in the trial, as it was one of the first cases to use forensic fiber analysis as a key component of the evidence. However, despite the evidence presented, the exact involvement of Williams in all of the murders remains a subject of debate and discussion, with some arguing the investigation and conviction were marked by racial biases and inadequate forensic methods at the time.