Quinn is an investigative journalist and former senior investigator for the Washington, DC Public Defender Service. Her work has exonerated Dale Helmig, Sandra Hemme, Ricky Kidd, and won the release of countless others. She is an Adjunct Instructor at UMKC Law School, where she co-teaches classes on the Fundamentals of Investigation and a Master Class in Postconviction Advocacy. She has published articles on investigation standards in The Champion and the Hofstra Law Review.