Many players have reported seeing NPCs that blink out of existence, or hear unexplained voices in the cemetery. Some have speculated that these are merely glitches, while others maintain the theory that these are the ghosts of NPCs killed by the player, either recently, during game-events, or in earlier times.
They only seem to appear at night, particularly during stormy weather or snowy. When one takes a photo or a selfie with their smartphone while in the cemetery, they run the risk of capturing a specter in the form of a ghost, or a shadow of a person.
In a video, a strange woman appeared in the cemetery. She appeared after the rain stopped, and shortly after introducing the thunderstorm cheat, she vanished. The last time she was visible was at 5:06, and at 5:13 she disappeared. The reason she vanished is unknown, however it is probable the weather changing instantly, by a cheat code, was a cause, but the player can hear her footsteps until 5:11, just before the weather was changed, meaning the reason she vanished isn't likely due to a cheat code.