Lawyers for Hyejeong Shin, recently divorced and far away from her family in South Korea, said she longed for the sense of safety she felt as a teenager at a Massachusetts boarding school.

“I just will never forget the look on his face that he gave me while he pointed the gun directly at me,” first-grade teacher Abby Zwerner said during an exclusive interview with NBC’s Savannah Guthrie about the student. “It’s changed me. It’s changed my life.”

Thanks to a new initiative at this Boston-based child care program, teachers have a unified strategy both for addressing the problematic behavior and teaching the toddlers to recognize the underlying emotion behind it.

Once students' personal data is found on the dark web, there is virtually nothing families can do, according to one cybersecurity expert. Here are eight recommendations district leaders should give to families following an incident like this.