Gregg Olsen’s new book, By the River’s Edge (Thomas & Mercer), chronicles the killings of Yolanda Sapp, Nickie Lowe, and Kathy Brisbois, and a decades-long hunt for a serial killer in Washington.
What is the first true-crime story you covered?
It was the story of Danny Stutzman; a little boy found in a Nebraska cornfield on Christmas Eve. A…