Executive Director & Co-Founder of ACCR. From 1993 to 2010, he served in the Homicide Unit of the Defender Association of Philadelphia. He has taught at countless death penalty conferences and hands-on trainings across the nation, including those sponsored by the Defender Association, the National Legal Aid Association, the National Association for Criminal Defense Lawyers, the NAACP Legal Defense Fund, the Bureau of Justice Assistance, the National Institute of Trial Advocacy, and the annual BYOC trainings coordinated by ACCR.

Marc is also an avid writer who has published essays in The Atlantic, Mother Jones, VICE and Slate on various aspects of capital jurisprudence. He earned his B.A. from the University of Pennsylvania, and his J.D. from the University of North Carolina.

He published his first book, A Descending Spiral: Exposing the Death Penalty in 12 Essays in the Spring of 2021.

Kaylyn Christian, ACCR’s Mitigation Director, graduated Cum Laude with her B.A. in Psychology and Criminal Justice from Temple University. As an undergraduate, Kaylyn became heavily involved with the Death Penalty Defense community through trainings and her position as a Homicide Unit Mitigation Intern at the Defenders Association of Philadelphia. Prior to becoming ACCR’s in-house mitigation specialist, Kaylyn began her own private practice based in Philadelphia.

In addition to her work for ACCR, Kaylyn continues to hold her own private practice as a paralegal and mitigation specialist where she focuses her representation on pre-trial and post-conviction capital cases, non-capital homicides, juvenile life without parole cases, and federal sentencing cases in the federal and state systems.

Frances Harvey joined ACCR as its first Staff Attorney in January 2023. After growing up in San Diego, they got their BA with honors from the University of Chicago and their JD cum laude from Northwestern’s Pritzker School of Law. Frances' commitment to prisoners' rights and capital defense has led them to Philadelphia, with stops in New York and DC. Frances has held fellowships with Reprieve US, the Legal Aid Society's Prisoners' Rights Project, and the Mississippi Public Defenders Office’s Capital Defense Division. Coming to ACCR from the Nassau County Legal Aid where they served as a Public Defender, Frances is ready to expand ACCR's capacity to improve capital representation in Pennsylvania.

Gregory is ACCR’s Director of Operations and joined the staff in January 2022. He earned his B.A. from Temple University with concentrations in Philosophy and Pre-law. Prior to his position with the Atlantic Center, Greg served as the Assistant to the President and CEO of Citizen Diplomacy International, a nonprofit facilitating the cultural development and exchange between Philadelphia residents and businesses with international communities. During his time with CDI he also served as a Project Manager, supporting the administrative and funding needs of specific initiatives within the organization. Gregory is passionate about utilizing his operational skills to serve the underrepresented and further criminal justice reform.

Maura Egan joined ACCR as a Development Associate in early 2020. She earned her B.F.A. from Pratt Institute with a concentration in Ceramics and a minor in Art, Design and Social Practice. While training to be a creative educator, Maura became heavily involved in non-profit fundraising and community organizing first as an intern and eventually as Development Director of Trilok Fusion Center for Arts and Education. She also served as a full time coordinator for a Brooklyn based children’s dance program called School of Blyss. In January 2021 Maura joined the staff full time as Director of Development. In 2023 Maura completed a certificate in Building Organizational Resilience in the Nonprofit Executive Leadership Institute at Bryn Mawr’s Graduate School of Social Work.