Well Lutnick's brother for one.

But Wikipedia has a list of notable people who died [1]. David Angel, an Emmy winning TV writer and producer. Garnet Bailey, an acomplished hockey player. Carolyn Beug who directed the award winning music video for Van Halen's Right Now. William E. Caswell, a prominent physicist. Charles Edward Jones, an astronaut. Daniel Lewin, co-founder of Akamai. Etc. You can read the list and come to your own conclusions.

[1] https://en.wikipedia.org/wiki/Deaths_in_September_2001