Kenji Goto: Video 'shows IS beheading Japan hostage'

A video has been released online purporting to show the beheading of Japanese hostage Kenji Goto by Islamic State militants.

Mr Goto, 47, is a well-known freelance journalist and film-maker who went to Syria in October, reportedly to try to secure Mr Yukawa's release.

Rupert Wingfield-Hayes looks back over the events since Kenji Goto was captured by the militants.