During a Wednesday night vigil for Kendrick Castillo, the heroic victim of the STEM School Highlands Ranch shooting in Colorado, the students grew frustrated with the adults leading the program because they felt the speakers were politicizing the death of their friend.A spontaneous protest broke out and several hundred students got up to leave, chanting together during their exit. It is the content of their chant that is so amazing to me: These grieving teens were chanting, “mental health!” together as they left the auditorium.