I received an email to write something about George Russell. This very important figure of Jazz, died in end-July. An excellent composer but above all a significant Jazz theorist that influenced modern Jazz musicians (among others Davis himself). Many say that without him there would be no «Kind of Blue» by Davis, I’m not sure, but I am certain that he made a few exceptional albums, at those magical end of the 50’s/beginning of the 60’s and became part of the group of people that moved Jazz forward.
An interesting documentary I’ve found on youtube: