This requires some professional knowledge.
Moreover, according to the traces at the scene, this place has been deserted for quite a few years.
This is not a good sign.
Serial killers, regardless of their motives, are highly likely to share two overlapping characteristics.
The first characteristic: the first victim murdered is highly likely to have some sort of connection with the killer, such as hatred, friend, conflict, or bullying...
This connection stimulates the killer to commit their first crime, thereby flipping the switch on their bloodlust.
The second characteristic: addiction.
Murder can also be considered a kind of hunting activity.
It's an instinct imprinted in human genes.
Once they've seen blood and continue to see blood, it becomes addictive like a drug.
After some time, if they don't kill again, they begin to feel itchy.
Only when they tire of this game or get caught or die accidentally does the hunting cease.
