To help reduce shootings and homicides, Chicago police will hold accountable entire gangs even if only a single member is suspected of a violent offense. It is part of an innovative new gang violence reduction program led by David Kennedy of the John Jay College of Criminal Justice and supported by MacArthur. In Cincinnati, where the program has also been implemented, there has been a 50% decrease in gang-related gun violence. To learn more listen to an NPR story about the program and read an op-ed by David Kennedy in The Chicago Tribune.