VH1.com recently published two articles dealing with the topic of JMJ’s murder. While not revealing a lot, it looks a bit like there is some movement in the case currently, people revealing information/thoughts unheared before. So there are signs that somebody might have shot at the gun men as they were leaving the studio.
If interested, read the two articles “Jam Master Jay’s Murder: Run-DMC DJ’s Friend Randy Allen Responds To New Allegations” and “Who Shot Jam Master Jay? Were Killers Caught On Video?” at VH1.com. The latter summarises a meeting between Randy Allan (JMJ’s friend and business partner) and Marvin Thompson (JMJ’s brother).
Also interesting, the timeline VH1.com put together: “Jam Master Jay’s Murder: A Timeline And The Key Players”