Four Americans died during the hijacking of a yacht in February . The U.S. Navy said it was investigating whether any other American citizens were on board when they were taken hostage by Somali pirates. According to the indictment , one of the alleged pirates aboard the Quest identified Shibin as the person who would negotiate the terms for the release of the four Americans . A prosecutor says the indictment marks the first U.S. prosecution of a pirate leader .
Four Americans died during the hijacking of a yacht in February . The U.S. Navy said it was investigating whether any other American citizens were on board when they were taken hostage by Somali pirates. A prosecutor says the indictment marks the first U.S. prosecution of a pirate leader .