John Emshwiller is senior national correspondent for The Wall Street Journal. He is based in the Los Angeles bureau and covers white-collar crime, including fraud, embezzlement, money laundering and the Mafia, and entrepreneurial stories.

Mr. Emshwiller joined the Journal in 1972 as a general assignment reporter in the San Francisco bureau and transferred to Detroit in 1974 to cover the auto industry and organized labor. In 1979, he moved to the New York bureau to cover nuclear energy, and in November 1982, he became an editor in charge of the paper's commodities markets coverage. He was named assistant bureau chief in New York in September 1983 and supervised the oil, energy and nuclear coverage.

In January 1985, Mr. Emshwiller transferred to Los Angeles as bureau chief, and in June 1986, he was named senior national correspondent.

Mr. Emshwiller graduated from the University of California at Berkeley with a bachelor's degree in social sciences.