Who to blame?

In the rape case involving Greg Haidl, I feel he should be the one blamed. I don't understand how he can take advantage of another person and simply expect his father to bail him out of trouble. Yes, his father is partly to blame because he should have been the responsible adult in the picture who doesn't allow his child to get away with everything, but Greg is old enough to understand that there are consequences to be paid when you commit a crime. He did not have to have learned that from his father. There are plenty of people out there who also did not have exemplary parents, yet not all of those people go about their days committing crimes and blaming it on their poor upbringing. His father's failed attempts at portraying the victim as a promiscuous girl and his son as an innocent young boy simply show how immature and irresponsible he is, especially knowing that he was the Orange County Assistant Sheriff. His immaturity should not be the basis for the rape. Having had an extremely lenient father who bailed him out for "minor" offenses, does not justify Greg's need to commit rape. Yes, he grew up with bad parenting, but not all parents are perfect, and not all kids with bad parents rape. I just don't understand how Greg won't take any responsibility for his actions. Whether the girl had consensual sex the night before, and showed up intoxicated the night of the rape or not, it does not justify the way in which Greg and the other guys treated her.