Officer Blake Snyder was killed in the line of duty in a neighborhood not far from several Lindbergh schools.
"Going out to get the buses that morning, they were going, seeing blood on the streets and they don't understand," teacher Elaine McArthur said.
McArthur says, like many people in the community, her kids were upset.
"Two weeks ago when they got to school – I'm going to cry," she said. "They were very distraught."
But the fifth graders from Sappington Elementary wanted to find a way to help.
"We are selling lemonade and people are donating money for officer Snyder," student Eli Wendel said.
All money collected from their drive-through lemon-aid stand will go to Backstoppers, an organization that financially supports the families of fallen first responders. The event started at 7:00 a.m. in the parking lot of Sperreng Middle School. Over the course of the day, the students raised $20,571.32!
"My dad used to be a police officer," student Addy Keller said. "It helps me kind of feel what his family is feeling and it helps me understand it more."
Tom Duff with Catholic Family Services says these kind of events are a healthy way for kids to cope.
"If you look at us, as adults, we all felt that need to be involved," Duff said. "We all wanted to do something. Kids are feeling the exact same way."
He says parents can also help by having conversations.
"Asking kids, 'When do you feel safe? When do you feel unsafe?' So then maybe creating a safety plan in that sense to help them feel safer," he said.
He says unplugging from social media may also be appropriate, especially for younger kids. If at-home interventions aren't working, he says families could give counseling a try. In the meantime, the Lindbergh school community is helping heal the wound one donation at a time.
"Let's do something positive," McArthur said. "Let's make some money for Backstoppers. Let's make some money for his family and give them a sense of relief that they don't have to worry about."
Earlier this month, Lindbergh High School raised $2,300 for BackStoppers by collecting donations at home football games and during school lunches. Concord Elementary School raised around $3,000 for BackStoppers as well.