Sociopathic serial bullies probably cannot be helped at the moment. Work on psychopaths shows that the condition does not respond to treatment - in fact, treatment may make the condition worse . Their behavior is as ingrained as a pedophile. I suspect the same applies to serial bullies. As an adult, the serial bully has to want to change - which they emphatically do not.
Bullying is often hierarchical.
Trace the bullying to its origin and you'll usually find a serial bully. Concentrate on this person. Develop an anti-bullying policy so you have some legitimacy to deal with the individual. Get Tim Field in to bring you up to speed quickly with a training seminar . Click here to order a copy online.