On the morning of 9/11 in New York City, ordinary people picked up video cameras and recorded. For John Kalymnois, his video and memories of that tragic day focused on individual people.

First, there were the desperate individuals Kalymnois saw waving white flags from the heavily damaged upper floors of the North Tower before falling to their deaths.

Then, after the first tower fell and Kalymnois was told to evacuate his building, he remembers the firemen who took refuge in his lobby.

“They were in shock,” says Kalymnois of the ash-covered emergency responders. “Everyone was in shock.”