Lundy Bancroft has spent over 17 years specializing in abusive men and also acts as a custody advisor. He is the author of "Why Does He Do That?" and "The Batterer as Parent," as well as articles in medical journals and professional books. The former co-director of Emerge, the nation's first counseling program for abusive men, he now practices in Massachuesetts while training various state and judicial agencies in working with domestic abuse.