I'm sorry to hear this. I saw him in 2017 as part of a Dizzy tribute with Eric Alexander, Cyrus Chestnut, John Lee and Tommy Campbell. I remember thinking he seemed tired and short-winded, but I kind of attributed that to aging and the life of a traveling musician playing a difficult instrument. According to this fundraiser that I didn't know about, he was diagnosed with cancer that had spread to his lungs that year.
I wish that I could have seen him under better circumstances, but I am thankful that I got to see him perform nonetheless. Thank you for the music, Mr. Roditi, and rest in peace.