Deitsch filmed the active Stoneman Douglas High School massacre from inside the school, which occurred on his senior year there, and was saved as he hid with other students in a closet during the event. Deitsch has criticized the media for sensationalizing shooters, and has encouraged supporters to be a part of protests and marches. On February 21, 2018 he was a part of a CNN town hall with lawmakers, asking senator Marco Rubio the question, "Why do we have to march ... to save innocent lives?" Deitsch was featured in a "Harvard Political Review" interview, along with Cameron Kasky, and David Hogg.