OMAHA, Neb. (AP) — An Omaha campaign that began as a way to show support for police officers is now raising thousands of dollars for causes championed by Officer Kerrie Orozco, who was shot and killed in the line of duty last month.

The Support Blue campaign, being run through the First Responders Foundation, launched in March in the wake of negative public sentiment following a number of highly publicized police-involved shootings around the country.

After Orozco’s death on May 20, the campaign began printing up T-shirts to help her causes, like youth sports. Omaha police are manning a booth this month at the NCAA Men’s College World Series, where they sold $22,000 in T-shirts in the first week of the series.

In all, the campaign has sold more than $40,000 in T-shirts.