Hey, no one is without powers. Ours are very limited in situations like that, but amnesty international usually provides a set of honoraries that can be addressed in situations like that, as well as in depth information about the case, in this case: https://www.amnesty.org/en/documents/mde24/2603/2015/en/

Of course, writing someone is useless most of the time, but within the powers we all have is also the power to create awareness for a situation of massive injustice.