Correct me if i am wrong but i dont believe ISIS have claimed responsibility yet
The only connection so far is this
"French Prime Minister Manuel Valls says Nice attacker was one way or the other linked to radical Islamist circles".
Im not even sure what that means
Either he was or wasnt
As someone else has already mentioned - Are we really sure that mowing down hundreds of people with a lorry was this guy's original intention ?
I realise in all likelihood ISIS will claim responsibility at some juncture but still ......