Kelly Cosby, who collaborated on a hip-hop song honoring U.S. Supreme Court Justice Ruth Bader Ginsburg before beginning her career at Duane Morris in September, died on Sunday after a battle with an aggressive melanoma. She was 25.

A Kansas City native, Cosby obtained her undergraduate degree at the University of Kansas and graduated from the New York University School of Law in May.

Shortly afterward, she was diagnosed with cancer, which in her final weeks ceased responding to treatment.