There are victims and families of victims who do not support the death penalty. A documentary aired in the UK a few years ago that spoke with the family of a prison officer (Daniel Nagle) who was murdered, the perpetrator (Robert Pruett) had been sentenced to the death penalty and the Nagle family were against the sentence -- even though they believe him to be guilty of the murder.

If you're in the UK you can watch that here: http://www.bbc.co.uk/iplayer/episode/b03zndw4/life-and-death...

I'm not quite sure if I'm interpreting your comment correctly, apologies if I've misunderstood the point you're making.