A new documentary looks at how gun violence has led to lockdown drills in schools. “Thoughts and Prayers,” streaming on HBO Max, focuses on the effects of those drills and the creation of active shooter preparedness products — now a $3 billion industry. Amna Nawaz discussed more with filmmakers Zackary Canepari and Jessica Dimmock. | PBS NewsHour

Roca, a gun violence intervention and behavioral health program, has seen significant results since the Massachusetts-based organization arrived in Maryland in 2018. Over the last seven years, 69% of Roca Maryland’s 734 participants have had no new arrests since entering the program, and 87% have had no new incarcerations. As Baltimore sees a historic decrease in homicides, violence prevention organizations such as Roca are helping prevent further gun violence among young men. Read more: https:/