The girl & the beast

http://service.spiegel.de/cache/international/spiegel/0,1518,433843,00.html

What I would like to know from professionels as CB
-trained, learned in that field of psychology - or others (or even victims), if it helps in the process of closure any or at all, if the victims know ( any abused - there are different forms(intensities), from the Nazi camps to TF etc. ) that there were others in world history, who suffered tremendously as well...knowing their biography etc.
Are there studies about that?