True they ate,they died,but on the other hand if they never ate from it,they could(would ) of died anyways.
Let me illustrate:On a store shelf there are many products.One of them has a label"POISON" IF EATEN YOU WILL SURELY DIE.If a person consumes the POISON he is one dead SOB no question.On the other hand if he doesn't eat the POISON he will eventually die anyways.