It's not a surprise, it's not shocking, it's not unanticipated, but it also is.
It's not religion and it's not strength and it's not competence. It's predatory nastiness, malevolence, neurosis, jealousy. It's nihilism, it's mental illness, it's their own despair and desperation transferred to innocent others in the most disgusting and cowering way.
Time and again they commit these heinous, abhorrent acts and time and again people and communities globally respond exactly the same way, by joining together en masse, by helping, supporting, persevering and remaining free.