Saudi journalist and government critic Jamal Khashoggi has not been seen since 2 October.
He was last spotted entering the Saudi consulate in Turkey to collect documents to allow him to marry his fiancee. Turkish officials believe he has been killed.
Here's what we know about his disappearance so far.
Please subscribe HERE http://bit.ly/1rbfUog
by BBC Three
by BBC News
by Al Jazeera English
by Bloomberg Markets and Finance
by BBC Newsnight