correct me if I am wrong but didn't the Brandon Teena murder take place in Omaha, Nebraska?
Also, one of the reasons for the repeal of the death penalty in Illinois was due to the exonerating influence of new techniques of DNA analysis which proved beyond a shadow of a doubt that there were innocent men on Death Row. Their gubernatorial pardons, and the repeal of the death penalty has been shown in the light of further advances in forensic analysis that WE ARE EXECUTING THE INNOCENT in America.
Executing the guilty is one question - executing the innocent is state-sanctioned murder, in my opinion, and that is why we need to repeal the death penalty in the USA. And because our justice system is imperfect, and has been demonstrated to be flawed in this supremely dangerous fashion, we cannot impose the final and irreversible penalty on those whom we cannot know are guilty.
As far as whether or not there is a fitting punishment for the crime, the most heinous sex crimes are never brought before a court, nor do the victims raise an accusation against the perpetrator, for these crimes are done between parents and children, cousins, uncles and aunts and nieces and nephews, etc. etc. etc. The most helpful thing we can do is to give support to the victims, and to encourage them to seek justice for themselves in the way that most supports their own healing and recovery. And that is my "non theoretical" opinion. More on this, I will not say.