"The Honolulu Strangler, also known as the Honolulu Rapist, was an unidentified, and Hawaii's first known, serial killer and was responsible for the death of five women in Honolulu between 1985 and 1986. The killer has not been caught..."
— Source: Wikipedia
"In 1929, German doctor Friedrich Ritter felt the need to get out of Germany. Running off with one of his patients, Dore Strauch, he made his way to the Galapagos Islands, where he settled on Floreana Island. Floreana is an unforgiving, harsh place, but he and Strauch made a rugged home there out of volcanic rocks and twisted pieces of wood. The eccentric doctor praised a regime of hard work, a vegetarian diet and lack of creature comforts. Such a lifestyle, he said, would make a man strong. They became famous: the two lovers, alone on a remote island, carving a life out of the barren rock under the blistering island heat.
The mystery of the Galapagos affair has never been solved. Margret Wittmer died in 2000. She stuck to her story about the boat for Tahiti her whole life (although she loved dropping hints that she knew more than she was letting on). Dore Strauch claimed that she and Dr. Ritter were certain that Lorenz had murdered Phillipson and Wagner-Bosquet and that the Wittmers had helped him cover it up. No one knows how Nuggerud and Lorenz ended up on Marchena, which was far away from their destination of San Cristobal. It will probably always remain a mystery, too, unless some new information comes to light..."
— Source: GalapagosIsland.net