"A former newspaper editor in Saudi Arabia and adviser to its former head of intelligence, Khashoggi left the country last year saying he feared retribution for his criticism of Saudi policy in the Yemen war and its crackdown on dissent.
On Tuesday he entered the Saudi consulate in Istanbul to get documents for his forthcoming marriage. Saudi officials say he left shortly afterwards but his fiancee, who was waiting outside, said he never came out.
Two Turkish sources told Reuters Turkish authorities believe Khashoggi was deliberately killed inside the consulate, a view echoed by one of Erdogan’s advisers, Yasin Aktay, who is also a friend of the Saudi journalist. "
Another high profile Saudi to disappear mysteriously: a list of similar cases is in https://www.washingtonpost.com/amphtml/world/2018/10/07/jamal-khashoggi-is-just-latest-saudi-dissident-mysteriously-disappear/