Each year, about 33 percent of all women and 3 percent of all men murdered in the United States, are killed by a so-called intimate, a spouse, partner, or lover. Nationwide, murder by an intimate is the number one cause of death for pregnant women. And murder by an intimate is not just an American problem. A European task force recently found domestic violence accounts for 25 percent of all homicides in London, and 35 percent across England and...