I'm speechless. This is a terrible shock.
Really regret now not being able to see his MJQ Tribute last year at Swanage but on the plus side I did get to hear his trio and the reunion sextet with Don Rendell, Art Themen and Norma Winstone a few years ago. Last time I saw him was at Ian Carr's tribute I think.
The elders of British progressive jazz are getting decimated this year. Here's thanking Mr Garrick for his superb music though and may he rest in peace.