Evil in humans doesn't develop over the years, as was believed so far. It is inborn, comes from a specific part of the brain and can be cured.
Scientists have tracked the roots of evil. They've found that before doing something bad, a part of the human brain reacts. That part is the hypothalamus, which controls body temperature, appetite and sleep. Immediately prior to the act itself, this area of the brain is activated.
This study was done by scientists from New York University in the US. They've discovered that prior to ill intent, the ventrolateral part of the ventromedial hypothalamus wakes up. The brain circuits responsible for the motivation of aggressive behavior have been identified, such as when an animal prepares to attack its prey. After observations were done on the brains of test animals, tests were done with human brains as well.
Scientists believe that in the near future it'll be completely possible to successfully read the early warnings signs of premeditated violence. This will help the prevention of acts of aggression, abuse, even sexual abuse.
According to them, their find will lead to the creation of various drugs with which people will be able to control their aggressive behavior.
Still, this sort of meddling with free will is widely controversial and it'll hardly be accepted with indifference by the general public. If such drugs are indeed created, they would have to be administered to people only with their express accordance and willingness.