Stella Carlson was supposed to spend Saturday morning painting children’s faces at a church. It would have been a welcome contrast to the weekslong onslaught of federal immigration enforcement and protests that have overwhelmed her home in the Twin Cities.

Being an active participant in her community is important for Carlson, and she had spent the last three weeks learning about mutual aid and participating in grassroots efforts to warn her neighbors of impending federal immigration action. The fatal shooting of Renee Good by an Immigration and Customs Enforcement officer earlier this month proved to Carlson and other Minnesotans that the potential for danger as an observer was not abstract.

“I know every time I leave my vehicle or leave my house and I put that whistle around my neck, I know because of Renee Good, the risk,” she told CNN’s Anderson Cooper during an interview Tuesday. “I think we all knew after that happened, it is now at that point, and it could be any of us.”

But she had no way of knowing that she would soon watch a man die — or that her video of that fatal incident would serve as a crucial counter to the Trump administration’s initial efforts to paint Alex Pretti as a wannabe assassin or domestic terrorist.