a big YES to the death penalty. There have been mistakes that have been made in the past, largely due to the legal system, which has major loopholes (atleast here in the UK where we follow case law- get yourself a good solicitor).
The death penalty is justified, ask yourself this, if the following had happened to a close relative of yours or a family member, and YOU were the Judge, what would YOUR verdict be?
UK July 2001
Peter Voisey admitts indecent assault to a girl of 12 and is convicted (unfortunately there is no death penalty in the UK, and he was soon released)
UK December 2005
This time he strikes at a house in blyth, where he abducts a 6 year old (by the way, do you happen to know any 6 year olds), from here home, while she was in the bath. He then sexually abuses her... twice and leaves her naked in an alley.
(full story bbc )
If I were the judge in 2001 I would consider suicide (although not permissable in Islam). If the above happened to a family member of yours and you were able to forgive them, THEN I would like to meet you, and tell you that you have done yourselves a great service by not being submissive to the desires of your ego and and seeking revenge.
I would then then tell you how much you disgust me, and how it makes me feel physically sick that you have done such a great disservice to Justice.