Plothole?

David did not kill Jack, so I wonder why Jack was coming back to haunt David.

Then again, Jack says that until the bloodline of the werewolf is severed and the curse lifted, all people who have been killed by the werewolf are doomed to walk the earth in limbo. So where are the rest of the "undead" people killed by the werewolf on the moors?

~ There is nothing more pathetic than an aging hipster.