I was speaking with Essdras Suarez, one of the photographers that was on scene the day of the shooting. The first day, he stayed on until 11 pm, which is about the time that law enforcement left that day. He stayed on until a few days afterward, snapping shots and generally observing the tragedy unfold. He won a Pulitzer for his work there.
Anyhoo, I reached out to him to see how to go about finding any forgotten of lost pictures or negatives. He told me that all of the negs that he took were given to the Denver Public Library. I sent them an email, but I am thinking that I would need to be onsite to view the negs, or any other archive data.
Is anyone in the Denver area? : )