You are going to die. Get over it. The only questions are how you are going to live and how/when you are going to die. Brave or afraid, death comes to all of us. The likelihood that your death will be the result of violence is exceedingly small; it is far more likely that an accident
or heart attack will take you than a violent attack. That is not an argument against taking precautions - you certainly should - but put things in perspective and do not live in fear of something so unlikely. But still it might happen...
When I was in Trinidad in 1996 a 70 year old American woman was killed. She was a very nice person, looking forward to an Atlantic crossing
. She was in the habit of walking the 5 miles up the road to the north shore, and return, in an undeveloped area of the old US Navy
base at Chaguaramas. For months she took this walk, and for months locals and cruisers alike warned her that this was a dangerous area to be in, even driving a car, but she was too free a spirit to be cowed. Then one day she didn't return - her body was found a week or two later and the perpetrator was quickly caught. Of course this was a terrible tragedy and had a great impact on the cruisers. It seems to me that there are two perspectives one might take on this: the first is that it wouldn't have happened had she simply taken the good advice she had been given, and the second is that she had lived for 70 years without fear of the world. Was her life better in some sense because of her choices? It seems to me that while mourning the loss we might well celebrate the life.
My own choice is to take reasonable precautions and then to get on with things without fear. There certainly have been times when I was afraid, and that was my cue to get the hell out of there. But I refuse to live in fear, and particularly of something that is so unlikely (but still possible).
We each have to make our choices, hopefully informed.