Note: I don’t remember how soon after 9/11 I saw this (or something very close to it) on the new and fresh WorldWideWeb. It would have been very soon after 9/11 — a week or two. At that time my day job was as the Vice-President in charge of Penthouse.com. As you can imagine it was, in those early much more innocent days, a popular paysite and it made a good deal of money for Penthouse.
At that time bandwidth was a very expensive part of putting a large site online and I bought bandwidth by the trainload.
At the same time, this was not a “video” but something made of coding called “Flash.” That made this video very very large and very expensive to have online for a private individual. I found the man who created this and hosted it and who was being rapidly impoverished by the bandwidth charges. Because I had “extra bandwidth” I took this on and the memorial was hosted by Penthouse right up until the time Penthouse crashed and burned a year and a half later. (It was purchased, ironically, by the hosting service that provided the bandwidth, later to be known as AdultFriendFinder.)
I hosted it because it was something I could do. In those days there was very little you could do, but what you could do you did.