During the translation of the New Testament into Huixtán Tzotzil, translation consultant Marion Cowan found that questions where the answer is obvious, affirmative rhetorical questions, as well questions raising objections tended to cause confusion among the readers. So these are rendered as simple or emphatic statements.
Accordingly, John 6:70 reads “You twelve were chosen by me. One a devil has entered his heart.”
Source: Marion Cowan in The Bible Translator 1960, p. 123ff.