The Wisconsin school shooting, where 15-year-old Natalie Rupnow killed a teacher and student before taking her own life, has raised concerns about a potential tribute to Columbine shooter Eric Harris.

According to reports from The New York Post, authorities believe the Madison shooting was a “planned attack,” but they have not yet established a definitive motive. The symbolic shirt, however, has rekindled public discussion about KMFDM’s unintended association with school shootings and its place within a darker subculture.