at first when i started the chapter i was like: ah ok this is the part when they try to force us to feel sad for the bad guy...not gonna work, ''cool motive, still murder''.
but then the last page happened and it all kinda connected, his mom is the haunting him, maybe he tried to take care of a cat to regain some control in his life, but his mom find out and either kill the cat herself or forced him to do it, and now that she's a ghost she's eats the souls of the cats he cares for like the time that ghost on hana had a feast in the cursed building, fuck me, im gonna suffer till the next chapter