If reading that article did not scare you enough to arm yourself, then read this one:
That was the original article I read about it, it goes into more detail about how the guy was stalking his victim and how the woman realized he was stalking her. She even went into a government office and asked for help. Then when she thought all was clear, she left and he again was tailing her and reportedly followed her into the store where he killed her. Too bad she was not the one who had the thought to grab a knife or machete in the store.
May she rest in peace and may the guilty party receive true justice at the end of a rope.
Be careful out there,