Apologies! Blogger has found issues with code and the image will not re-upload. You'll find the horoscope at my all-purpose astrology blog Jude Cowell Astrology.
Update Oct 12, 2018: it has been reported on MSNBC that a video time stamp shows Mr. Khashoggi entering the Saudi embassy at 1:14 pm which gives 22Sag19 rising ('23Sag' = "Immigrants Entering a New Country") and 14Lib43 at Midheaven with Mercury and Sun snugged around it. Restrictive Saturn, planet of authority, is first planet to rise. It's an Hour of Jupiter and broadcasting Jupiter is chart-ruler but is unaspected as is the Ascendant.
Please enlarge the image to read chart details. In the center of the horoscope are listed Saudi Arabia's Syzygy Moon (last lunation, a New Moon prior to the overthrow of Riyadh, the founding event this chart is based upon--with 2018 Pluto conjunct the Syzygy Moon and denoting a critical time of development and issues of separation), and its Prenatal Solar Eclipse ('PE') in the 12 North Saros Series; 12 North's theme is on the chart. Last 12N: on SA's birthday January 15, 2010 @25Capricorn conjunct natal Sun and Jupiter; next 12N: January 26, 2028 @6AQ conjunct Saudi Arabia's natal Icarus (5AQ47). Note that 5-6 Aquarius happens to be the position of America's natal South Node (1776).
Although I had not intended to compare Mr. Trump's natal planets with those of Saudi Arabia (pals though they may be--he thinks), a few of his planets are listed around the chart as well but are not highlighted. Of note is Saudi Arabia ('SA')'s Pluto @17Gem02 Rx conjoining Trump's natal Uranus, his 'guiding planet' of chaos and disruption, an explosive, revolutionary combination of planetary energies. And SA's natal Vertex ('VX') @00Vir26 conjoins the occult 8th cusp, royal Regulus (success if revenge is avoided), and the natal Ascendant of Donald Trump with his aggressive Mars rising @26Leo.
Now naturally you see that SA has a Sun-Jupiter conjunction @25Capricorn rising where transit Pluto will soon trod, and that Mr. Underworld was already near SA's natal Saturn (19Cap22) on October 2, 2018. In fact, Pluto's recent Station on September 30, 2018 @18Cap45 was within orb of SA's natal Saturn, describing a period when power and authority are abused. Plus, the nation is having a Mars Return (10AQ21) this very day (October 11, 2018 at 9:29:52 am BAT Riyadh) and will soon have a three-fer Saturn Return in 2019, exact on: March 23rd; June 7th (Rx); and December 14, 2019, when all accounts are ready to be tallied and lessons have surely been learned (for best karmic results).
And big as life, there's lady Venus so recently turned retrograde (October 5, 2018 @10Sco50) at the top of Saudi Arabia's chart on October 2, 2018 conjunct the nation's natal North Node of meetings and encounters. As you know, the top of a horoscope is the most visible point, the Midheaven/Goal Point--the World Stage. Whether October 2nd Venus represents Khashoggi's fiancee and/or the concepts of jealousy and vengeance, yours truly does not know. But Mr. Khashoggi is known as a critic of the Saudi regime and since he allegedly entered the embassy to get papers that would allow them to marry, perhaps this Venus in this particular chart represents love, romance, and relationships--and meetings (NN) about love matters. Yet we cannot rule out negatives such as betrayal and spying because Venus is in brooding, secretive Scorpio, a sign associated with death, control, and in-depth investigation which includes journalism and reporters like Jamal Khashoggi.
Of course, journalists are often considered by the regimes they cover to be spies, are they not?
For more details on this disturbing topic see today's CNN report Saudis Discussed Plan to Lure Khashoggi to Saudi Arabia, US intercepts show which didn't work on him so they used the Saudi embassy in Istanbul to 'detain' him. And from 2016 along the same lines, also see Does Vladimir Putin Kill Journalists?.