RIO DE JANEIRO – Endangered Amazon hardwood sold by a Brazilian exporter allegedly behind the massacre of nine farmers this year is being sold unimpeded around the world, Greenpeace said Tuesday. The environmental pressure group said the purchase of murder-tainted products by importers from as far apart as Japan and the United States illustrates lack of control over a logging industry ravaging the world’s greatest rainforest. In its report, “Blood-Stained Timber — Rural violence and the theft of Amazon timber,” Greenpeace cataloged continued large-scale shipments from the Madeireira Cedroarana sawmill in the months following the April 19 massacre.