NEW HAVEN — More than two years later, the details still have the power to horrify. In the middle of the night, two parolees break into a tidy clapboard house in the central Connecticut town of Cheshire. They club the father, a doctor, and tie him up. One of them rapes and strangles the mother, the authorities say. The other molests one of the daughters, 11-year-old Michaela. The father breaks free and shouts for help. But the intruders have set a fire: The girls, Michaela and Hayley, 17, tied to their beds, die of smoke inhalation. The triple murder on...