Never Knowing: Chevy Stevens

This is the second book by this author. I really enjoyed the originality of the first book, this one was still original, but I didn't see the need for it to be told in the same format as "Still Missing" where the protagonist tells the story by telling her psychologist. A woman, Sara, who was adopted, decides to search for her real parents, evidently driven by the need to know her family's medical history for her daughter, who is seemingly healthy? She finds her mother who seems terrified that Sara found her and wants nothing to do with her. She eventually learns her father was the notorious "Campsite Killer" and her mother was the only one of his victim who escaped and survived. The News gets a hold of the story and her father finds her location and contacts her. He wants to meet, then finds out she has a daughter and wants to meet his granddaughter as well. In the end he kidnaps them both, but to protect them from the police officer who had his own motive.