That is ashame.
Actually, it’s a crime.
A shame is something that happens, that couldn’t be helped.
This could have been stopped. By a few well-placed 7.62 rounds; and wasn’t.
It’s what happens when those with malicious motives are allowed to run amok, and the good, decent folk of ANY society (and yes, there’s good decent moslem folk too) don’t smack them down swiftly, promptly, and in final fashion...