A woman was arrested on suspicion of fatally stabbing an acquaintance during an argument in a Maryland home.<br />According to Newser, the 27-year-old has been identified as the daughter of a former US ambassador.<br />Sophia Negroponte has been charged with first-degree murder in the stabbing death of Yousuf Rasmussen, 24, of Bethesda.<br />Montgomery County police report the killing occurred at a residence in Rockville late Thursday.<br />In 2005, President George W.
