sentences:  His last non-fiction book, "Slaves of the KGB", was about people who worked as KGB informers.As a journalist for the newspaper "Novaya Gazeta (NG)", Shchekochikhin investigated apartment bombings allegedly directed by the Russian secret services and the Three Whales Corruption Scandal which involved high-ranking FSB officers and was related to money laundering through the Bank of New York.Shchekochikhin died suddenly on 3 July 2003 from a mysterious illness a few days before his scheduled departure to the United States, where he planned to meet with FBI investigators.