The BBC come close to an epiphany over the French attacks on pedestrians

The BBC report report this morning on the third recent vehicular attack on pedestrians in France includes this line:

'Also, even if it is established the car attacks were the work of unbalanced individuals, might not Islamist propaganda have played some role in pushing them to the act?'

The BBC get close to the truth but will not investigate what the source of this Islamist propaganda might be...