Background
McMahon, John Jay was born on October 13, 1931 in Bronx, New York, United States.
McMahon, John Jay was born on October 13, 1931 in Bronx, New York, United States.
City College of New York (Bachelor of Science in Education, 1954). John Jay College of Criminal Justice (Master of Public Administration, 1975). Pace University (Juris Doctor, 1980).
Admitted to the bar, 1980, New New York Member, New York Police Department, 23 Years. Retired 1977 as Detective Captain in Manhattan.
Instructor: State University of New York Law School at Buffalo, Criminal Procedure, 1979.
Mercy College, Graduate Faculty, Criminal Justice, 1982-1983. Member: Westchester County, New York State and American Bar Associations.
Member, New York Police Department, 23 Years. Retired 1977 as Detective Captain in Manhattan.