This report is based on research conducted by the Urban Institute's Justice Policy Center on the violence prevention activities taking place at the Thurgood Marshall Academy Public Charter High School during the 2008-2009 school year. Based on an assessment of the school's violence prevention approach using qualitative and quantitative data from stakeholder interviews, field observations, programmatic records, and surveys with students and faculty, this report includes: a logic model of the school's violence prevention approach; detailed information on each of the violence prevention activities within the violence prevention approach and how they compare to national best practices; student and faculty perceptions of the school climate and the violence prevention approach; and recommendations to the school administrators on how to strengthen their violence prevention approach based on the assessment findings. The report concludes with brief remarks on next steps in school violence prevention research.