Father Bob Weiss’ church hosted the funerals of eight of the children who died during the Sandy Hook Massacre in December 2012. Like the rest of the Newtown, Connecticut community, he has been struggling to move forward from the tragedy while helping his congregation do the same. “This is one of those moments where presence is the answer,” Weiss says in the trailer for “Lessons from a School Shooting: Notes from Dunblane,” Kim Snyder’s follow-up documentary to 2016’s “Newtown.” “You’ve just got to be there and try to help people fix it for themselves.”

But Father Weiss needs someone to be there for him, too. He’s also grappling with grief and PTSD, and providing emotional support for this kind of tragedy is taking its toll. He finds comfort when Father Basil O’Sullivan of Dunblane, Scotland reaches out. In 1996 Dunblane saw its own similar tragedy: 16 school children were killed by one gunman.

“Lessons from a School Shooting” explores the friendship Weiss and O’Sullivan’s built via letters back and forth over the Atlantic. It also follows O’Sullivan’s visit to Weiss, and draws comparisons between Dunblane and Newtown. The latter launched “the ‘Snowdrop’ campaign that brought about radical gun policy reform in the U.K., whereas the U.S. has had no federal reform to date,” the film’s synopsis describes.

But there has been a tangible shift in the gun control movement since Sandy Hook, thanks especially to the Parkland activists. It’s possible that Snyder’s work will keep pushing the conversation forward. “[It’s] also changing in places you might not expect. Responsible gun owners, including NRA members, have on numerous occasions responded to the film by saying, ‘You’re going to reach guys like me,'” Snyder wrote of “Newtown” in a guest post for Women and Hollywood. “So, through shared empathy, maybe there is hope for civil discourse.”

“Lessons from a School Shooting” premiered at the Tribeca Film Festival this year, where it won the Best Short Doc Award. It will begin streaming on Netflix September 28.