Premises 2 and 3 are assuming we understand these complex variables. We may know a general idea (3) of what they may be, but we certainly aren't close to understanding the complex interactions between them. Not only that, 4 and 5 - humans do in fact give back to the environment which sprung them. Complex interactions do not just create by-products (people in society), the byproducts themselves can have synergistic qualities. If we were to take these premises to look at nature, then a hurricane- a complex assortment of variables, would have no influential power. Yet, it does! Synergy is born from complex interactions, but understanding people and criminals no less is a daunting task which can't be handled so simply. Look at the social sciences... I think it will take some time to help find a way to decrypt human behavior, then we will be able to prevent the 'hurricanes' of violent behavior, etc.