“In the third King v. King legal dispute in four months, two of Dr. [Martin Luther] King [Jr.]’s children are refusing to provide a biographer of their mother, Coretta Scott King, who died in 2006, with a collection of her photographs, letters and personal papers. Their brother, Dexter King, chairman of their father’s estate, has asked a judge to force them to comply. At stake is a $1.4 million book deal with the Penguin Group — as well as the reputation of one of America’s most famous families.”