Could it be the attacks are at night because that’s when the diplomats’ cell phone rests on their nightstand? Maybe their electronic devices are the target and

Could it be the attacks are at night because that’s when the diplomats’ cell phone rests on their nightstand? Maybe their electronic devices are the target and it just so happens that the diplomats are close by and become collateral damage. Edit: I assume an electromagnetic attack. The sounds the victims hear could be caused by that, see Wikipedia links in this thread.