Honestly, all words fail me.
I am sure we have all had nights out to see a band, support a team, or enjoyed someone’s company in a restaurant. The last thing you would dream of is that you might be killed for doing it.
But, please, know the difference between someone following a religion, and it terrorist. It could be the guy next door, as easily as a member of IS.
As always, look for the helpers to restore faith in humanity.