A little more than a year ago, Yi found his daughter on the first floor of their condominium and asked her to lie down on the floor, Holt said. He said Yi told her that he would give her a massage, took a three-pound dumbbell and proceeded to strangle her with it.

After his daughter was dead, Yi went upstairs to find his wife in their bed, Holt said. Yi then took a 15-pound dumbbell and struck her multiple times, the prosecutor said.