KAREN KNUTSON, a writer and former practicing care manager and nurse practitioner, drew on her twenty years as a nurse care manager in Charlotte, North Carolina for her debut novel, Expert Witness. She has a master's degree in nursing, an MBA, and personal experience as an expert witness. Her articles have appeared regularly in national nursing and care management journals. She served as Editor-in-Chief of the Journal of Aging Life Care (Journal of Geriatric Care Management) from 2005 to 2014, remained on the editorial board until 2016, and now serves on the peer review board. She is a member of Sisters in Crime and lives outside of Philadelphia with her husband and an Airedale terrier named Marty.