A Gay Teenager Fatally Stabbed a Classmate. Was It Self-Defense?. Cedeno, Abel, McCree, Matthew (d 2017), Homosexuality and Bisexuality, Discrimination, Bullies, Self-Defense, Murders, Attempted Murders and Homicides, Bronx (NYC), Education (K-12), Public School 67, Urban Assembly School for Wildlife Conservation (Bronx, NY)