He died at age 42 in the September 11, 2001 Terrorist Attack on board United Airlines flight 175. Daniel was accompanied by his partner of 14 years, Ronald Gamboa, and their adopted 3-year-old son, David Brandhorst. They were returning from their annual vacation in Provincetown on Cape Cod and Boston.
See September 11, 2001 Terrorist Attack/Casualties.
wikipedia.org dumped 2003-03-17 with terodump