It's a dangerous world out there. This isn't the Matrix or some other Hollywood fantasy. In our real-life universe, no normal female will be have a good chance of survival against an adult male who is intent on killing her. Fact. Laws, Religion and Social norms are what keeps women from being subjugated by men. However even though that works for most of us, murderers and rapists don't care about all that.
So sad that she made a mistake and didn't check that it was her correct ride, so sad that her friends didn't do that for her... and she happened to run into one of those people in our society that doesn't care about human life.
Not to blame her... But was she aware of her own vulnerability? Was she taught?
Edit: I'm the parent of boys.... but wow.. what a challenge to parent girls... empower them, but still give them the reality that they are physically vulnerable... god bless you parents. So sad.