Marx played high school football at Detroit Catholic Central High School in Novi, Michigan, earning 1st Team All-City, All-State and All-American honors.
He also participated in basketball, helping the 1968 team to the Catholic League and City Championships.
[1] He was inducted into the Detroit Catholic Central High School Athletic Hall of Fame in 2008.
[3] He was a consensus All-American and co-captain of the Fighting Irish football team in 1972.
[5] Marx earned a Juris Doctor degree from Notre Dame Law School in 1977 and subsequently worked in the banking and securities industries.