Semi-related: There was a TV event/movie in Germany/Austria/Switzerland last year about a (fictitious) court decision about an airforce pilot that shot down such a plane. The plane was taken hostage by terrorists and took course to a football stadium.
The (non-fictitious) audience in Germany could vote if the pilot is guilty for killing the people in the aircraft or not. 86,9% in Germany voted that the pilot is not guilty.
http://www.imdb.com/title/tt5680442/ https://de.wikipedia.org/wiki/Terror_%E2%80%93_Ihr_Urteil