The testimony in Judge Jon C. Blue's courtroom in State Superior Court here showed that Mr. Hayes and Joshua Komisarjevsky, a friend from a Connecticut halfway house for parolees, entered the house on July 23, 2007; beat and restrained Dr. Petit, now 53; and wreaked havoc, including the rape and strangulation of Dr. Petit's wife, Jennifer Hawke-Petit, 48. The two daughters, Michaela, 11, and Hayley, 17, died of smoke inhalation in a fire the intruders were accused of setting.