''Murder may be one of the most preventable forms of sudden infant death,'' the book suggests. With 3,200 cases of SIDS reported annually in the United States and 5 to 10 percent considered suspicious, especially in cases with multiple deaths in one family, there may be 160 to 320 overlooked infanticides in this country each year. http://query.nytimes.com/gst/fullpage.html?res=9A06EED9163FF93AA257...