Audio and video evidence exists and has been widely shared with world intelligence agencies, including the US, UK, Russia and Germany, and others which have a relationship with Turkey or are seen as influential. That is why, despite their desperate desire to do so, no Western country has been able to maintain support for Crown Prince Mohammed Bin Salman. I have not seen the video from inside the consulate, but have been shown stills which may be from a video. The most important thing to say is that they are not from a fixed position camera and appear at first sight consistent with the idea they are taken by a device brought in by the victim. I was only shown them briefly. I have not heard the audio recording.

There are many things to learn from the gruesome murder other than the justified outrage at the event itself. It opens a window on the truly horrible world of the extremely powerful and wealthy.