Notice the gematria of 'schizophrenia' and 'paranoid schizophrenia', in light of his January 13 death in 1979, emphasis on '79.
Notice, Donny Hathaway died in New York, January 13, 1979, at the age of 33. It was 104-days after his 33rd birthday, or a span of 105-days. Message received?
'Scottish' has Gematria of '113', like January 13.
Don't forget the word 'murder' has Gematria of '79', like the year of his death.
Also, notice the detail about him jumping from the 15th-floor.
47 is the 15th prime; Suicide = 47; Time = 47
Last, he died on a date with numerology of 93.
1/13/79 = 1+13+79 = 93 (Saturn = 93) (Saturn, keeper of time, death and judgment)