I just learnt of the passing away of Ronald Shannon Jackson at the age of 73: He was suffering from leukemia. I saw Shannon Jackson twice, first with the Decoding Society in my home town and then with Last Exit at the North Sea Jazz Festival in Scheweningen in 1987, just outside the Hague. I also bought several Decoding Society records back in the 80s and I believe they can still be found easily.
Much later I found out that the NSJF gig was videotaped and parts of it also appeared on "Cassette Recordings" out on the Enemy label the same year. So what I can offer here in memory of Shannon Jackson is a little over 40 minutes of Last Exit at the NSJF.