You knew a teenager like Charlie Crabtree. A dark imagination, a sinister smile - always on the outside of the group. Some part of you suspected he might be capable of doing something awful. Twenty-five years ago, Crabtree did just that, committing a murder so shocking that it’s attracted that strange kind of infamy that only exists on the darkest corners of the internet - and inspired more than one copycat. Paul Adams remembers the case all too well: Crabtree - and his victim - were Paul’s f...