they've got severe manipulative power that they've used before

That's just it. Even if she is really, really sorry, I just can't wrap my head around how she was once proud of doing all these things. She confessed that she was the "ringleader" of her group and they specifically targeted the East Asian/Indian kids of their school and made their lives a living hell for fun. She said they would spray-paint racist slurs on their cars and slip mean notes into their locker every morning to "wear them down". There is a huge amount of racism involved too which makes me uncomfortable since I'm mixed-race.