" The disease is a social one."

Bullshit... this has nothing to do with society! This has to do with a couple of twisted evil sadistic fucks who need to be put down...

"cultural norms which glorify violence and commercialize/exploit/degrade human sexuality in general"
What a colossal load of crap... You're saying the the movies fault.. or it's TVs fault... or rap/rock music... and that's a load of bull... It's the fault of Paul and Karla... plain and simple...

"animals are never found to engage in such sadistic behaviour"
Umm... ya... they are... just not for very long... because when one animal in a 'tribe' or 'herd' or pod' goes nuts and starts acting anti-social, the others in that group turn on it and KILL it for the good of the WHOLE group...

Humans are the only one arrogant enough to think they DON'T have to do the same... that we can live outside of nature... and we're wrong...

"THANK GOD"
There is no 'god'... it's up to us....