the parts making the whole

At first glance a Sag sun man. Really at 29 degree? Or a Cap man. Look how serious he looks all the time. And how he can talk in small portions. Look at for how long he was married to the same woman. BTW a CAP wife. wiki: "In 1967, he married Adelaide Gail Sloatman, with whom he remained until his death from prostate cancer in 1993."

Honest, bold, witty: Venus at Sag/Sc cusp.
Goodlooking, sympatico, good will, preaching: AC/Sag

No drugs no alcohol: empty H6 and Virgo Moon/Neptune.

Mars in scorp. Is he a scorpio person for the matter of invention's maternity?
Maybe.
... with Pluto in his 8th house in Leo... rebirth in your oppostion sign. Leo and music...well

apropos 8th house. would you say this analysis of mine is correct?
Sign on the cusp of H8 is cancer. -> die from cancer disease
Pluto in H8 -> cancer meets genitals
Chiron in H8 -> 10 years of unnoticed developing cancer

Could it not be AC in Sag? I mean AC!
+ Venus on Sag/Scorp cusp?
+ Mercury in Sag?

In my experience I have never seen a Cap-free Sag who is serious and can talk in small portions.