He did get the help but depression is a deep hole and often hard to get out of.
Also medication is hit and miss which can make it worse if one has to start over
or has the meds that make you want to do what he did. But I agree it's a waste losing such a talented man.

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"What you hear in a great jazz band is the sound of democracy. “The jazz band works best when participation is shaped by intelligent communication.”
Harmony happens whenever different parts get to form a whole by means of congruity, concord, symetry, consistency, conformity, correspondence, agreement, accord, unity, consonance…….