(1959 - 2008)
https://groups.google.com/d/msg/comp.lang.tcl/kxMXbAj0xNU/n2mNYEa0rR0J
Obituary: http://thecoccinella.org/mats-bengtsson
Developer of a number of Tcl extensions and the Coccinella Jabber/XMPP comunication application.