I don't post on this forum as a general rule but reading the posts so far, I have a great many thoughts about it and can't put them eloquently or succinctly enough to be truly representative of my POV.
Some thoughts are glib; 2 wrongs don't make a right. Treat others as you would wish to be treated. Murder is murder regardless etc.
I also think this crime is totally abhorrent and the men that commited it truly evil. However, I don't believe that the death penalty was a deterrent in this, or any other case, that the reason these men commited such a vicious brutal attack is more to do with their attitude to women than the justice system (or lack thereof).
I am against the death penalty. It doesn't work. It only rids the planet of 1 criminal (or possibly innocent person) and does nothing to prevent others committing the crime. You've only got to look at the nuclear 'deterrent' to see that things spiral out of control.
Finally, I wonder who we get to commit such acts of "justice" on our behalf? Surely a truly innocent un-evil person would not be willing or unaffected by such actions. Do they not then get debased by the act of murder, even if state sanctioned? If the person is happy to do it, what does that say about them? Surely it opens to question whether, by quirk of fate, such an sociopathic personality would not have been committing such acts, but without state sanction?
I don't think you can be against the death penalty except... without being hypocritical. Where do you draw the line? You can't undo such an act if it turns out the crime wasn't commited by them or if society changes and no longer deems the action a crime. Clearly rape and murder are evil acts and unjustified, BUT people were once locked up & treated inhumanely for being gay or mentally ill. We now have a greater understanding of certain aspects of human behaviour. Please note, I am NOT suggesting this crime is or will ever be viewed in a different light (I.e. justified or tolerated) in any way but that the classification of an evil or abhorrent acts can and does change. Sodomy was illegal and called evil & abhorrent despite it between consensual and between 2 adults, but is viewed differently now.
Having said all that, I would find it very hard to be rational and apply my own logic if it were my child, relative or friend. I too would want revenge.
I've probably been repeating a number of views and cross-posted with others as I type, and whilst I don't claim to have an expertise in this area or even on feminism, I don't believe this is a feminist issue. Preventing anti-women crimes, changing society to ensure men and women are treated equally and hopefully fairly, educating people and ensuring justice is applied equally towards sexes is a feminist issue. This crime was against a woman, true, and the circumstances of it, and the repetition of such crimes, are mysogonistic and therefore a feminist issue, but the application of the death penalty is, imo, a "humanist" issue and nothing to do with individual crimes/criminals - that is revenge. As humans and feminists, surely we should rise above such baser instincts and respond to crimes & apply justice with our heads, not our hearts?