Photographer who has worked for National Geographic, The New York Times, and The Washington Post. He won Reportage Photographer of the Year by Pictures of the Year International in 2017.
He studied history and international peace and conflict resolution at American University.
He is best known for his series Ebola In Sierra Leone which won the World Press Photo Award for General News. He has more than 150,000 followers on his petekmuller Instagram account.
He is the grandson of surrealist painter Leon Kelly.
He and John Stanmeyer are both award-winning National Geographic photographers.