In his graduate studies at Boston College, Marcus focused on Catholic social teaching and learning. His dissertation proposed a “theology of neighbor,” using the Good Samaritan as a generative theme for exploring the demands of Christian neighbor love and solidarity in an age marked by globalization and unequal interdependence, individualization and secularization, and digital technologies and social media. His interests in religious and moral formation flow from and have been reinforced by ten years of experience in parish youth ministry and college campus ministry. Marcus received his undergraduate degree from Marquette University and is a native of the Milwaukee area.