I don't think the black haired guy kill another person (after he kill when he was young, but it's seems like he doesn't want to kill in that time) i think he just wants the mom of the girl to suffer? maybe the mom or the father(because he can still be alive, maybe he just hide and fake his dead?) kidnapped the homeless kid and the black haired guy know and blackmailed the other homeless kid to help him? or maybe the haired guy just plan all of this to put the blame in the mother? i don't know, this always have a lot of possibilities and I never have the right answer for this tipe of story, but I'm curious
I don't think the black haired guy kill another person (after he kill when he was young, but it's seems like he doesn't want to kill in that time) i think he just wants the mom of the girl to suffer? maybe the mom or the father(because he can still be alive, maybe he just hide and fake his dead?) kidnapped the homeless kid and the black haired guy know and blackmailed the other homeless kid to help him? or maybe the haired guy just plan all of this to put the blame in the mother? i don't know, this always have a lot of possibilities and I never have the right answer for this tipe of story, but I'm curious