If you think about what creates an evil spirit or an allegedly 'haunted' site, chances are that the root cause creating the tortured soul was a horrific crime. Murder, especially, has been widely cited as the reason ghosts are born.
Murky waters: Murder by drowning
"Too much of water hast thou, poor Ophelia, and therefore I forbid my tears," says Laertes, a character written by William Shakespeare for his famous play 'Hamlet'.
Household items used as murder weapons
A home is supposed to be a safe place. It's where we live with our loved ones, a spot to retreat to from the outside world. However, the walls of a house can contain some of the most sinister stories, where building resentments can lead to violent crimes.
Murderers who drank their victim's blood: Long before vampires were portrayed in books and media as the ideal romantic partner, these blood drinking demons were gravely feared and tormented the minds of many.