The cause of random shootings? It is anyone's guess. My guess is, that there are more people being born now, and the population is rising. Thus, more psychopaths. I watched a really eye-opening show on Discovery Channel, regarding true psychopaths. They are incapable mentally to feel pity, remorse. Their inhibitions are low, or nonexistent. When caught by authorities, they plainly state that, let go, they would kill/molest again. These people were put into an MRI scanner, and their brains actually were abnormal. Terrifying.. I know that health conditions as well, can cause people to snap. Brain tumors, mental illness. It is a fine line to weed out the true criminals, who get happy from hurting others, from the ill that honestly can't help it and are as able to control themselves, as a person with a physical illness is able to control the illness.
It just disgusts me. I am a big gun advocate, and I love shooting for target practice, and eventually I plan on getting my hunting license. Things like this are just such a huge step backward for responsible shooters.. what a shame. I liken it to our snake-keeping actually. So much misunderstanding and fear out there for the hobby. And when someone's irresponsible, and lets their snake harm or kill another person.. huge steps backward I really wish that the human race could evolve for a change instead of going backwards.
People can parade gun-control around as the answer to all violent crime. I assure you; if guns are taken away from law-abiding citizens, the only people that'll have them, are the criminals. They get them now, they would get them then.
Another thing regarding guns.. the media focuses so much on the negative shootings. You never see a news clip of a responsible dad showing his kids how to target practice with an antique gun that belonged to his father's father, or something cute like that!