An exhibition of art by his son in Reims in eastern France on Saturday turned into a tribute ceremony for Sebastião Salgado, the Brazilian photographer and environmentalist who died a day earlier. His widow, Lélia Wanick Salgado, and the couple's two sons were among those paying tribute to the celebrated artist, whose work captured both the suffering and dignity of people across the globe. (AP Video by Boubkar Benzabat )