A CNN investigation shows how an online movement called nihilistic violent extremism is targeting vulnerable kids to hurt themselves — and also to plot mass attacks. 0:00 Car bombs in Palm Springs, CA 0:40 Nihilistic violent extremism 1:31 Targeting children 3:24 What is 764? 4:44 The records obtained by CNN Watch more CNN here: cnn.it/4kh5RPe #Terrorism #Extremism #News