Fayed was born in Alexandria, Egypt and was the eldest son of the Egyptian billionaire Mohamed Al-Fayed, former owner of Harrods department store. His father was also the former owner of Fulham Football Club and the Hôtel Ritz Paris. Fayed's mother was the Saudi Arabian author Samira Khashoggi; her father was Dr Muhammad Khashoggi, who was of Turkish descent, and brother to the billionaire arms dealer Adnan Khashoggi.
Not really a conspiracy:
https://www.express.co.uk/news/world/1033626/jamal-khashoggi...
Trump is involved with these people as well:
http://anewdomain.net/jamal-khashoggi-adman-khashoggi-trump-...