IT'S TEEN terror season in America. This time it's North Carolina where a 15-year-old boy is accused of viciously ambushing his father and stepmother--because he was grounded. The plan was then to skip off to Mexico, he even had a bag packed with his toiletries, clothes and underwear. But first he gathered his guns.
According to court documents, the baby-faced teen claims he was a battered child who experienced physical abuse from the time he was a baby and his dad Christian Hans Liewald, 43, controlled his every move.
Early Monday, the teen called 911, saying he had
