Addressing urban violence as a problem that grips cities large and small, the Philadelphia-based organization Mothers in Charge hosted its first national conference on the impact of violence this week, reports the Philadelphia Inquirer. Mothers in Charge includes many mothers who lost children to homicide. It has chapters in New York City, Chicago, San Francisco, and Kansas City. Philadelphia Police Commissioner Charles Ramsey told the group that increased dialogue between police and communities “is critically important” in combating urban violence. “We don’t have months to wait,” he said, noting that many homicides are solved in the first 48 hours. Chief Scott Thomson of the new Camden County, NJ, police force said he makes it a point to talk to every homicide victim’s survivors. “It’s important that police travel that journey with those families,” he said, noting that police should not become desensitized to violence. Last year, Camden, with about 75,000 residents, had a record 67 homicides.