It was a murder that sent shockwaves around the world, news outlets all over were reporting the assignation of Arkady Babchenko, who was a Russian journalist and outspoken critic of President Putin. Just weeks after the novichok poisoning in Salisbury another apparent attack on foreign soil.

Found in a pool of blood Babchenko was declared murdered in Ukraine in May but a day later was back from the dead, alive and well at a Kiev press conference. In this episode of BBC Panorama, for the first time we hear the inside story of the fake murder

We learn why Ukrainian security services decided to stage his death? And in the propaganda war between the truth and fake news, what, if anything, did it achieve?