A prisoner in Syria, a Japanese journalist and Agony for his life

What may make the japanese government in order to ensure…
the release of a Japanese journalist being held hostage by an organisation associated with al-Qaeda in Syria, after the publication of the photo on the internet.
The photo looks like it was posted last night on the internet, shows a bearded man, dressed in an orange jumpsuit, holding a note written in japanese. “Please help me. This is my last chance,” said the message, which was written a mess, with the signature “Τζαμπέι Γιασούντα”.