This is a 3,100 word illustrated monograph from the Famous Cases oif the FBI series. Some are calling this series "Cliffs Notes for busy people."It was October 2, 2002 and a 55-year-old man was walking in a parking lot in Wheaton, Maryland, near the nation’s capital. It was a typical mild fall evening until suddenly he was shot dead by a sniper’s bullet. By 10 o’clock the next morning four more people within a few miles of each other had been gunned down by a person or persons unknown.The investigation was publicly headed by the Montgomery County Police Department and its Police Chief, Charles Moose. The Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF), the Federal Bureau of Investigation (FBI), the Secret Service, the Virginia Department of Transportation and police departments in other jurisdictions where shootings took place, provided assistance in the investigation.