Christ almighty.
So she needed to stay indoors after dark, dressing in a nun's habit, going out with a male relative and walking three feet behind him at all times?
College kids leave the safety of their dorm. That's no excuse to be robbed and murdered. Who gives a flying leap why she was out of her dorm, across the bloody street from it, and got killed.
Your inherent character bias is showing and that's unfortunate.
There is such a thing as unnecessary risk. There is also necessary risk.
I would seriously rethink working a night shift in that neighborhood. That might be an unnecessary level of risk for some, but not for others.
Leaving ones dorm when it's in a bad neighborhood should be done in groups. That's what I advised my daughter when she went to college - even in a very nice small town in rural North Carolina, with a very proactive administration and its own police force. But in my line of work I see lots of victims - some who took unnecessary risks, and some who were just in the wrong place at the wrong time. There are no guarantees, ever, but it's a question of considering the odds.
Under NO circumstances, however, should a young girl go out to purchase drugs in a bad neighborhood in the middle of the night. She is deliberately making contact with a greedy, amoral, and murderous set of people in an area where law enforcement or decent folk will not be around to intervene. With - unfortunately - predictable results.
It's a ridiculous leap from there to your crypto-Islamic example. One can be sensible without being silly.