I know like the Mikebro theory is hotly debated with the MikeVictim theory (which I don't even think is true) but let's just say Michael was the older brother and say for everyone's sake it is true. How he would get redeemed is if he does the opposite treatment towards his younger brother, and what I mean by that he treats other kids of C.C's age more better, more nicer and doesn't harm or show any rude treatment towards them. C.C was at least 5 when he died and the reason why I'm saying this is because of the MCIs. A way how William Afton got to them. He would have known of their existence or wanted to target them as Mike was either friends with them and may have been kinder to them. But then you would say, they attacked him in FNAF 1. Well true, yes they did, but they attacked him under speculation of thinking he is William. Mike would have been a teen when C.C died and he may have grown up a bit but may have not fully resembled his father, maybe the kids even thought Mike betrayed them and thought he actually killed them, who knows? Either way! Another way I am saying this and as much as you all hate this theory of GlamMike. Freddy used the terms "friends" in the Burntrap ending in front of Mangle whom is heavily all the MCIs all together. Freddy may have used these terms because he was friends with them as Mike. But why he didn't tell Gregory and unless Scott wanted us thinking or didn't want to bring Mike back this can be debunked. But what u think? Is through Mike how William found out about the MCIs and targeted to kill them? Or he just chose random?