Unfortunately i have to deal with situations like this in my job at times. Cops, Firemen, and medical personal often bear witness to the horrible aftermath of these types of crimes. I can say through my own personal experiences with situations like this over the years, it has certainly changed my own views on the right punishment to fit the crime.
My stance is this. I don't care if it was an elderly person, middle age adult, teenager, or your child. The horror that these people endured will forever scar their memories and very existance.
I fully support life in prison with the possibility of the death penalty being implemented if seen fit. I've always supported capital punishment, and i always will.