As part of their effort to challenge white supremacy , the group worked to clean up anti-Semitic and racist graffiti in the Lincoln Park neighborhood of Chicago . The swastikas and similar graffiti were spray-painted on the 40th anniversary of Kristallnacht , when Jewish-owned businesses across Germany were vandalized . The vandalism was attributed to William G. Leinberger , a member of the neo-Nazi group Chicago Area Skin Heads
Kristallnacht
Kristallnacht
John Brown Anti-Klan Committee