What is the ruling on someone who was coerced into wronging himself and others while in prison, and then denied and defended those who wronged him after his release from hardship, especially since he is ill and might perish if he did not do so?

If a person is coerced into wronging himself, it is permissible for him to do so, such as being coerced into throwing himself into fire under threat of being killed. However, if he is coerced into wronging another, it is not permissible for him to do so, even if his non-compliance leads to his own death, because coercion does not justify infringing upon the rights of others, such as killing or usurping.