Hetherington at the opening night of the World Press Photo Award exhibition in Zurich, Switzerland, on May 7, 2008. (AP/Keystone/Eddy Risch)
Hetherington at the opening night of the World Press Photo Award exhibition in Zurich, Switzerland, on May 7, 2008. (AP/Keystone/Eddy Risch)

Tim Hetherington: A star inexorably, humbly rising