Background
John, Constantine was born on March 1, 1946 in Chicago, Illinois, United States.
John, Constantine was born on March 1, 1946 in Chicago, Illinois, United States.
University of Chicago (Bachelor of Arts, 1967). University of Illinois (Juris Doctor, 1970).
Worked at Gekas & Associates, Limited. (Chicago, Illinois) specializing in Civil Litigation, Appellate Practice, Criminal Litigation, Real Estate, Securities, Commodities, Employment Class Actions, Appellate Practice. Admitted to the bar, 1971, Illinois and United States.
District Court, Northern District of Illinois including Trial Bar.
1973, District of Columbia, Virginia and United States. District Court, District of Columbia.
1974, United States. Supreme Court. 1978, United States.
Court of Appeals for the District of Columbia Circuit. 1984, United States. Court of Appeals, Seventh Circuit.
1988, United States. Court of Appeals, Ninth Circuit.
1993, Arizona.
Regional Counsel, Midwest Region, Division of Enforcement, United States Commodity Futures Trading Commission, 1980-1984. Assistant United States Attorney, District of Columbia, 1976-1980.
Associate Counsel, Subcommittee on Crime, House Judiciary Committee, United States House of Representatives, 1974-1976. Counsel, Impeachment Inquiry, House Judiciary Committee, United States House of Representatives, 1974.
Attorney, Criminal Division, United States Department of Justice, 1973-1974.
Associate, Chadwell, Keck, Kayser & Ruggles, Chicago, Illinois, 1971-1972. Military: With United States Army Reserve, Intelligence Corps, 1969-1975.