They can be found through the Internet and mass media : the many , many web sites and videos that promote paranoid views of the world and validate violent action in retaliation . James Garbarino : Violence that seems senseless to us makes sense to shooters . He says troubled , lonely boys can perceive the world as hostile and full of enemies . They see themselves as being hunted by a pack of wolves who will kill them if they don't obey their orders. View fostered by web sites promoting paranoia , shooting video games . Culture supports access to weapons , he says , entertainment promotes violence .
James Garbarino : Violence that seems senseless to us makes sense to shooters . He says troubled , lonely boys can perceive the world as hostile and full of enemies . They see themselves as being hunted by a pack of wolves who will kill them if they don't obey their orders. View fostered by web sites promoting paranoia , shooting video games . Culture supports access to weapons , he says , entertainment promotes violence .