Actually happened that way a number of years ago. A cabbie shot and killed a "yout" who along with some others was trying to rob him (not too far from the tech campus). Exactly what you said happened, and the MSM feigned surprise and phoney outrage when the cabbie was not charged was a wonder to behold.
There has to be somebody in the library who would escort her to her car at midnight. It is unfortunate that you have to worry about such things at the old alma mater but it is what it is.