Pierre Cochard

The provided articles focus on the release of Cécile Kohler and Jacques Paris, who were held as state hostages in Iran for nearly four years. The articles detail their release, return to France, and the inhumane conditions they endured during their imprisonment. The articles highlight the end of their long ordeal and their reception back in France. There is no mention of Pierre Cochard in either of the articles. Therefore, it is impossible to provide any information about him based on the given text.