Liza Rodman has worked as a tax accountant for nearly thirty years in the Boston area. She began researching this story in 2005 when she realized her personal connection to Tony Costa, the infamous Cape Cod killer. In the years since, she has gathered thousands of documents, testimonies, and interviews, perhaps more than any other investigator or journalist who has looked into this case. She attended UMass/Amherst in the late 1970s, and received her Bachelor of Arts in Creative Writing from Vermont College in 2005. She has been a fellow at the Hambidge Center for the Creative Arts and has participated in the same women’s writing group for the last eighteen years. She lives with her husband outside Boston. The Babysitter is her first book.