Sorry, no can do. The actions on the part of the perp in Connecticut are heinous and reprehensible and I feel terrible for the innocent children and their families.
Banning something (guns, knives, cars, alcohol) isn't the answer IMHO. Someone intent on doing an act of violence can't be prevented from doing so by legislation or proclamation. If this were so then there would be no murders, drunk drivers or thieves because murder, drunk driving and theft is already against the law. God bless the families and the innocent children. Banning an inanimate object isn't the answer. Societies mores need to change or be changed. How you do that, I haven't a clue....