Arnold helped found '' Breaking the Cycle of Violence '' , a conflict resolution program in the wake of the Columbine high school massacre . Through the program he spoke to school students and adults about the importance of forgiveness in the US , United Kingdom , Northern Ireland , Rwanda and other places . He traveled and spoke extensively with Steven McDonald , a US police officer who was shot and paralyzed , and who contributed to Arnold 's book on forgiveness
Columbine high school massacre
Columbine High School massacre
Johann Christoph Arnold