In what has to be a terrific loss to the art and politics of photojournalism, Tim Heatherington was killed in an R.P.G. attack earlier today in the Libyan city of Misurata.

Heatherington, best known for the moving and gut-wrenchingly beautiful documentary about a platoon of airborne soldiers stationed at a forward firebase in Korengal Valley in Afghanistan.

The Korengal was scene of some of the heaviest and bloodiest fighting since the United States led intervention in 2001. His video, along with Subastian Junger’s accomponying book War, won wide acclaim. The film, titled Restrepo after Medic Juan Restrepo who fell in the first days of combat, was nominated for an Academy Award.

Heatherington was covering the Libyan conflict for Vanity Fair.

Much will likely be said in the days to come about Heatherington, his influence on the art of photojournalism, and the nature of the present conflict in Libya. For now, I just want to mourn the loss of a truly brilliant man who, with a lens and microphone, gave a picture and a voice to the madness around him.