Cedric was murdered because Theo allowed him to do what he wanted and go where he wanted, well Theo would sooner die than ever let that happen again. He’d only let Hermione walk out to the car unsupervised and look at what had happened. He ran a hand over her arm, some of the cuts were going to scar, but he’d already called one of the best plastic surgeons in the city to come and give a consultation. Hermione wasn’t going to be disfigured by that madwoman, she was still beautiful even with the scars but he didn’t want more reminders of this ordeal on her body than absolutely necessary. If Theo had his way then there would be nothing left for her to remember this incident by, except for her increased dependence on him.