It

 

is complete nonsense to believe that they did this all on their own.

Iran threatens Israel over looming ground offensive in Gaza: report

"National Security Council spokesman John Kirby last week said that Iran had "broad complicity" when it comes to Hamas due to their support for the terrorist organization, 

but that they had yet to see 

"any specific evidence 

that tells us they were wittingly involved 

in the planning 

or involved in the resourcing 

and the training 

that went into this 

very complex set of attacks" 

that were carried out.

If not them them?

 Who then?

You already know the answer.