That's it.
Not because "he was depressed." Not because "he was crazy." Not because he was influenced by religion. Not because "he fell in with the wrong crowd."
And certainly not because he hadn't gotten laid in 20 years.
He killed and injured women because he was a man who was poisoned with entitlement to women's bodies. Because women wouldn't "give up the pussy" for him, he hated them and planned for a long time to kill them.
Sodini is a case of Nice Guy™ Syndrome gone right off the deep end. If you're unfamiliar with the term "Nice Guy™", capitalized and with a trademark, it describes the sort of man who seems to think that he's owed the attentions of conventionally attractive women because he meets baseline levels of decent behavior, such as not beating or raping women. He doesn't consider that maybe he needs to develop a personality, or attend to his hygiene, or perhaps not radiating sheer loathing of himself and of women in a creepy way.
They're fond of saying how "girls always go for the jerks." Sure, some women do date awful men. But, sometimes, those "jerks" aren't really jerks. They're just more self-confident than the Nice Guys™.
The flip side is that, quite often, Nice Guys™ have female friends who'd be more than willing to date them. But the Nice Guys™ don't notice them as sexual beings, because they're not "hot" enough.
Now, I normally have sympathy for the socially awkward. I myself am socially awkward, possibly with undiagnosed Asperger's (no insurance at the moment). In fact, in my early adulthood, I went without sex for years at a time, because I was too depressed, anxious, and self-hating to even begin conversations most of the time.
Oh, and I was fat. As I still am.
So how come women like me — and there are a lot of us — don't pick up guns and kill the men who deny us the cock?
Because society doesn't teach women that we have a "right" to sex, the way it does men. It teaches us that if we can't get laid, we're "unfuckable." We need to diet, to slather on makeup, to do our hair better, to wear prettier clothes, to be sweeter and more submissive.
And it doesn't say to our male friends, "Hey, why don't you date her? She's really nice! Give her a chance! Don't be so picky!"
I have absolutely no sympathy for Sodini. None.
If that makes me cold-hearted, a hardass, a bitch, so be it. I'm used to being called a "bitch" for pointing out the seemingly endless entitlement of so many men, the ones who come into feminist blogs and diaries and so forth and scream "WAHT ABOUT THE MENZ???" any time the discussion is focused off their selves, who scream "OMG MANHATER!!" any time we simply stop kissing their asses and address societally embedded injustices against women.
Sodini is not some outlier, some oddity, some oddball. He is the extreme end of the spectrum that begins with dehumanizing comments, progresses to sexual harassment, then to rape and domestic violence. But — just as with the Marc Lepine case, just as with the Amish schoolgirl case, so many, especially in the media, are desperate to see the cause as something other than misogyny, and to "other" Sodini into someone who is anything like ordinary men.
Society is absolutely, positively saturated with contempt and hatred for women. Those who claim that feminists "look for things to get angry about" have no clue that we have to look for things to ignore. Because once your eyes are opened, once you "take the red pill," you cannot stop seeing this shit everywhere.
Cannot stop realizing how many men truly, viciously hate you and consider you inhuman because your genitals differ from theirs. And because you actually dare to have standards about which men will have access to them.