Zachary J. Martin is adjunct professor of history at Roger Williams University, Salem State University, and Bristol Community College. Professor Martin is the author of The Mindless Menace of Violence: Robert F. Kennedy's Vision and the Fierce Urgency of Now. Martyr to Freedom was Professor Martin's first book, and this second edition is a follow up to his research and an expansion on the life and death of Captain Daniel Drayton. Professor Martin is dedicated to the study of history and has focused his research on the political aspects of nineteenth-century America, as well as violence in American society, memory and history, and privateering.