This is just a theory so idk if it's true
Spoiler!
I think Christopher is behind this. When that guy broke in and attacked him, it could have been a plan to make him seem innocent. And we aren't really seeing as much of him as the other characters. He could be reporting back to the bad organisation (I forgot the name). I JUST DONT TRUST HIM😭😭
AGAIN, THIS IS JUST A THEORY, I HAVENT READ THE WHOLE MANGA