To answer OP's question as to what causes such gruesome rapes
Its the conservative Indian society. Period!
A pervert horny guy with raging harmones may not commit rape. But a quiet shy introvert and sexually suppressed guy is more prone to rape.
The only reason "capital punishment for rapist" is debated is because the tendency to rape comes from a person's upbringing, his society and his psychological status.
Sweden has the highest rape case in the World.
Blog: Which Country has the Highest Rape Rate in the World?
Shocking right? But dwelve deeper into the statistics and things start clearing up. 77% of the rapists were muslim immigrants. I am not saying the muslims are like that, im saying that when the closed societies clash with modern society, bad things happen.
Imagine a brahmin orthodox guy from Bihari village, never talked to a non-family-member-gal ever till he is adult. Never touched a girl...never sat close to a gal in class...oh wait, he went to boys-only school, which is so common in rural Bihar...
NOW, he comes to New Delhi for studies/job. OOOHH LA LA....Sexy chics...EYE POPPING..Revelaing cothes..and so friendly and interactive gals
!!!
His brain goes psycho
, his morality nerve snaps, and he starts fantasizing those women. And being so inexperienced in interaction with the opposite sex, his insecurity and phobia turns him into a rapist. He doesn't give a **** if he is hanged tommorow, he just wanna get laid! And an innocent promising lad turns into a rapist
. IMO Blame goes to his upbringing,society etc etc,,
As for those 60 year old men who rape 10 yr old kids, well thats mental defect, not horniness. They deserve the Mental Asylum, not the gallows..