Slaying at US judge's home raises concern about cyberthreats
He killed himself when police pulled him over a week later and found a list of enemy judges, including Lefkow, in his van. Marshals Service, which protects the nation's approximately 2,700 federal judges, said they were not tracking Den Hollander. Marshals Service to spend more time monitoring such online hate speech. The Marshals Service said it reviewed more than 1 million derogatory social media posts aimed at people it protects during the last fiscal year. Marshals Service.