An addendum to your story "Sun WTC staff are all alive", you might mention that Phil Rosenzweig, director of horizontal scaling in the Solaris software organization, was on board American flight 11.
He joined Sun in January 1991 - I was his CTO at that time - and managed a number of networking software groups.
He spent the last few years doing network-related research in SunLabs. He was a good friend and a great colleague.
Sun Microsystems Labs