That struck me too. However, from what is posted of the story here it says "She left her dorm room after she found her roommate with a boyfriend." and maybe she chose to leave the dorm room instead of 'had to'.
Someone said this story has been on all the cable stations but your post here is the first I've heard of it. I'm usually a pessimist when it comes to stories like this but I can hold out some hope here. Having a daughter just a few years older does that sometimes.
It's the first I've heard of it.
You want to protect them but ....