Photo: Richard Drew

A YouTube member has posted the entire 9/11: The Falling Man documentary on the website.

It is an hour-long documentary about the search for the identity of one man shown in a famous photograph by Richard Drew (seen above).

As you can imagine, the documentary has really graphic images from that day, so feel free to skip over the video if you aren’t comfortable watching it. But let me just tell you, this was one of the most heartbreaking, moving, and sad documentaries I’ve ever seen, and if you do watch the whole thing, it certainly deserves your full attention.