For over 80 years Virunga National Park has sheltered the natural world in a veritable Eden on Earth. The park sits on the northeastern corner of what is now the Democratic Republic of the Congo. It is where acclaimed zoologist Dian Fossey first brought the precarious plight of the mountain gorillas to the world's attention. In July 2007, six mountain gorillas were found murdered, execution-style by gunfire. By chance, photojournalist Brent Stirton was there on assignment and he documented the scene. His photographs of the lifeless male silverback and his family captured the attention of the world. The world responded in disbelief. Only an estimated 700 of these primates remain in the wild and now there were six fewer. Six months later National Geographic sent in the first Western journalists to enter the gorilla sector of the park since the murders. The search for the killers found corruption at the highest levels and revealed how Virunga had become one of the most dangerous places on earth, with military corruption, imperiled conservation and refugee desperation. In the end, one man was falsely accused of the crime, one stood trial and one held the park and remaining mountain gorillas that live there hostage.