a cnn opinion research poll asked teenagers if they had ever been ridiculed, i'm i willated or threatened by another child. 37% said yes, 63%, no. when asked if they had ever been afraid to go to school because of such actions by another child, only 8% said yes, 92% said no. got to tell you the battle against bullying is a very personal one for a father whose little boy committed suicide. our carol costello reports. >> reporter: kirk smalley is on a mission. there he is, an honored guest at oklahoma city's western heights high school. trying to put a stop to bullying. >> i have to make a difference. i promised my son on father's day this year i'd stop this from happening to another child. >> reporter: for years, smalley's son, ty, struggled with a bully at school. and when you say he was being picked on, how was he being