Which Witch is Which

In the early 19th Century, a curious series of events occurred, culminating in the death of a family's Patriarch. The culprit was never caught. Because how do you capture and convict a malicious, ghostly entity of murder? The tale of these strange incidents is still told today, and the cave on the family's property has more sightings of ghostly activity than many other places. Even Andrew Jackson is said to have seen it. So, come with me, as we answer the question: Who was the Bell Witch?