Marc Schindler

Executive Director


As JPI’s executive director, Marc Schindler is a dedicated justice system reformer, while serving in a variety of roles. Most recently, he was a partner at a DC-based nonprofit philanthropic investment organization, Venture Philanthropy Partners. He served in a variety of leadership roles at DC's juvenile justice agency, Department of Youth Rehabilitation Services (DYRS) including Chief of Staff and Interim Director. Schindler also served as Staff Attorney with the Youth Law Center, advocating for the rights of young people in the juvenile justice and child welfare systems. He is also a former Baltimore City public defender. Schindler is a recognized expert in the field, providing commentary in the national media, including on CNN and NPR, and is also the author of numerous articles and book chapters. 

Paul Ashton

Development and Finance Manager

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As JPI’s Development and Finance Manager, Paul manages JPI’s administration, fundraising and financial operations. He is the author of a number of JPI publications including: Gaming the System, Rethinking the Blues, The Education of D.C., and Fostering Change. Prior to joining JPI, Paul spent time as a sexual assault victim advocate and conducting research examining intimate partner violence in the LGBT community. Paul’s experience with victim issues led him to author JPI’s white paper: Moving Toward a Public Safety Paradigm: A Roundtable Discussion on Victims and Criminal Justice Reform. He is active in the local community and currently serves on the Police Complaints Board for the District of Columbia, the governing body of the D.C. Office of Police Complaints, and on the board of directors of Rainbow Response Coalition, a grassroots advocacy organization working to address LGBTQ intimate partner violence.  Paul received his Bachelor's in criminology from The Ohio State University and a Masters in criminology from the University of Delaware.            


 Research and Policy Associate 

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Jeremy Kittredge is JPI’s Research and Policy Associate. In this position, he is responsible for assisting in the generation and coordination of JPI’s research and policy work. Prior to working at JPI, Jeremy held various positions in non-profits that work towards criminal justice reform, including The Campaign for the Fair Sentencing of Youth, the International Association of Chiefs of Police, and the American Correctional Association. Throughout his academic and work experiences, he has developed a passion for youth justice reform, specifically for those that are serving long-term sentences and those housed in adult correctional facilities. Jeremy received his Bachelors in Criminal Justice from Curry College and a Masters in Criminology from American University.

Sadie Rose-Stern 

Director of Communications and External Affairs

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Sadie is a non-profit advocate and expert with a focus on social justice. She has been a Staff Attorney, Communications Director and Executive Director, and is excited to return to the justice field with JPI. Her expertise spans communications and branding, strategic planning, smart organizational growth, developing sustainability for organizations and change management. Sadie is proud to have worked with and for the National Juvenile Defender Center, the Senate Labor Committee, Jack Berman Advocacy Center, the American Institute on Bisexuality and more. She holds a law degree from the University of San Francisco, a fine arts degree from the School of Visual Arts in New York City and is a proud graduate in Political Theory and Constitutional Democracy from James Madison College at Michigan State University.

Keith Wallington

State Based Strategist

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Keith, State Based Strategist, leads JPI's state-based projects, the Models for Change juvenile justice initiative and is intimately involved with the Greater Baltimore Grassroots Criminal Justice Network which works on Maryland criminal justice initiatives including re-entry, child support for returning citizens, and life without parole issues. Keith pens opinion editorials and writes and delivers testimonies before various policymakers in an effort to incite change.  Prior to joining JPI in 2010, Keith worked as an organizer for the Alliance for Retired Americans, a nonprofit organization dedicated to the health and economic security of older Americans. As a field organizer, he helped to build and charter states to the national Alliance and educate the public about the health and economic concerns of older Americans. After working as an organizer, he served as the Director of Community Outreach for the Alliance for Retired Americans where he helped build the organization through group affiliation. Keith also worked as a field organizer for Fight Crime: Invest in Kids (FCIK), where he recruited and educated top law enforcement officials about the importance of early education and evidence-based programs as proactive investments to fighting crime including meetings with Congressman John Spratt (SC), U.S. Budget Committee Chairman, to discuss investments in education as a way of reducing future crime. Keith graduated from American University with degrees in biology and psychology.

Jamille White

Office Administrator

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As JPI’s Office Administrator, Jamille works to facilitate the management of human resources, finances, and other various daily logistics to ensure smooth organizational operations. Jamille is a graduate of the University of Phoenix where she holds a Bachelors in Business Administration and an MBA with a concentration in Human Resources Management. Prior to joining JPI, Jamille used her business administration acumen to support Presbyterian and United Methodist Churches in North and South Carolina, Maryland, and Washington, DC. She has a passion for creating, installing and introducing management systems that enhance efficiency and productivity within the organization and helps to guide teams to accomplish goals. Jamille feeds her need to impact communities by volunteering with Habitat for Humanity, the Salvation Army and several other non-profit organizations. She is the proud parent of two awesome sons, Jamal and Javaris who are currently enrolled in the Engineering Program at Clemson University, South Carolina. In her spare time, Jamille enjoys Bikram hot yoga, spoken word, reading and writing.  

Jason Ziedenberg

Director of Policy and Research

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Jason Ziedenberg is JPI’s Director of Policy and Research. In this role, Jason has strategic and operational responsibility for generating and coordinating JPI’s research and policy work. He has also held staff positions with two systems, the Washington, D.C. Department of Youth Rehabilitative Services, and the Multnomah County Department of Community Justice (the adult probation and parole agency covering Portland, Oregon).   He has served as a consultant to the National Council on Crime and Delinquency, the National Center for Victims of Crime, the U.S. Justice Department’s National Institute of Correction, Evidence-based Associates, the Southern Poverty Law Center, the Washington Lawyers Committee on Civil Rights and Urban Affairs, the Campaign for Youth Justice, and the National Association for the Advancement of Colored People (NAACP).  He has authored publications for two dozen juvenile and criminal justice policy organizations and initiatives. He has a Masters in Journalism from the Columbia University Graduate School of Journalism in New York, and a Bachelor of Arts degree from the University of Toronto from his hometown, Toronto, Canada. 

Zachary Boullt



Zachary Boullt is an intern at JPI working with JPI’s research, communications, and state-based projects. Zachary is a junior at the University of Texas at Dallas studying political science and history. He is currently working and studying in D.C. as part of the Archer Fellowship Program. His passion for justice reform has been nurtured by his work with the Innocence Project of Texas, where he evaluated past cases for evidence of innocence, and his studies concerning constitutional justice issues and historical factors driving incarceration rates. He has also been active on his campus, serving as the editor-in-chief of the campus’s editorial and satire publication, as a DJ for RadioUTD, and as a member of the moot court team.

Julie Fragonas



Julie Fragonas is currently interning at JPI and helps with research, communications, and organizing. She is studying at Georgetown University for a year, as part of an exchange program between Georgetown and Sciences Po University in France, where she majors in law and political science. She will be pursuing a French Judicial System Law degree and became interested in criminal justice reforms as an undergrad, when she started meeting people who had been in the system and were still deeply affected by its issues. She became involved with the National Reentry Network for Returning Citizens as a research and communications intern and was part of an Innocence Project for a semester, where she assisted the client’s lawyers. She also enjoys traveling to unknown places and going rock climbing.

Michael Fuller



Michael Fuller, an intern at JPI, works with JPI’s research and communication departments. Michael is with us through the Brown in Washington Program and will resume his undergrad education at Brown University in the Fall. He is currently majoring in Public Policy, with a focus on institutionalism and welfare regimes. He has previously worked in employment law, as a fellow for the 2016 Clinton campaign and conducted research on legislative coalitions in the Rhode Island State House. At Brown he is a campus leader for the Petey Greene Program, which brings student tutors and meaningful education to prison classrooms across the East Coast. Originally from Colorado, he enjoys exploring the Rocky Mountains and visiting Presidential Libraries.