What we know: The Bangladesh bakery attackers per BBC News (part 2)

The last paragraph of this BBC report on the latest Islamist terrorist attack, this time in Dhaka, could make someone say 'unless'.

'"My son used to pray five times a day from a young age. But we never imagined this. There was nothing at home, no books or anything to indicate he was leaning that way, So we had no inkling."'

 Unless it was a book he read regularly that inspired him...