It was the Judge's husband and 90 year old mother who were the vicitims of the crime. If the judge had been home, she no doubt would have been the third vicitim.
She IS the third victim, and her daughters the fourth, etc. The killer inflicted maximum damage, more than killing her.
I heard on the news that the bodies were found in the basement. What's with that? Perhaps at the entrance to a garage below the house? Where she would be sure to walk right into them? Was there a dog? God help this poor woman, she's the victim of the worst possible cruelty.
STD, I'm not discounting a professional hit either. Remember the US Senator from IL (name escapes me) who found one of his gorgeous twin daughters murdered in their very fancy lakeshore mansion? I seem to recall that he quit sponsoring certain legislation afterwards....something that would have curtailed crime or unions in some way. The killer got into the house despite big guard dogs, and was never found.