Marcus, a Nashville native, attended Meigs Magnet School and Hume-Fogg before graduating from Southwest Dekalb High School in Decatur, GA. Returning home to Nashville, he attended Tennessee State University, earning a Presidential Scholarship and a partial Athletic Scholarship after walking on to the TSU football team. He graduated Summa Cum Laude with his Bachelor's degree in Political Science with a minor in Psychology.
After graduation, Marcus went back to his old neighborhood to teach government and Spanish at East Nashville Magnet High School while coaching the boys' track team. His experiences as a teacher and coach in Nashville help to inform his positions on the link between poverty and a lack of access to mental health treatment and proper resources; which continue to drive recidivism up.