A native of Chicago who earned his undergraduate degree in philosophy from Loyola University in 1957, Mr. Boyle graduated from Marquette Law School in 1962. He served as law clerk to Wisconsin Supreme Court Justice Horace Wilkie, then became assistant legal counsel and pardon counsel to Gov. John W. Reynolds. Mr. Boyle joined the Milwaukee County District Attorney's Office in January 1965 and became Deputy District Attorney, trying most of the major felony cases during those years. From 1977 to 1984 Mr. Boyle was also an adjunct professor of criminal law at Marquette University Law School.