Rash of murders: look at the stats in the observer and increase over last year at this time.
Random murder: will concede that may be speculative at this time but we will see. My money is on that. Robbery gone bad or random is a distinction without a difference.
I have expressed my concerns and have not told others what they should do. I am not wrong to be afraid or for feeling it is a good idea to stay away from a place where there has been a significant uptick in the murder rate. Only time will tell but my main point is that more needs to be done.