There has been a spate of cop killings, I saw a promo for a special report on TV questioning whether it was just random. I didn’t get to see the report.
I have been a donor to charities that raise money for the widows and orphans of fallen LEOs since I became of age. I think I will redouble my efforts going forward.
For your purposes, random or not isn't relevant. As for your mental impression of reality, two points: truly random events tend to clump; the "year of the shark attacks" was media-created fiction.