He was actually introducing the format of the book, i.e. it started with Ulbricht being arrested for running Silk Road, then jumped back to the beginning of the story. Of course it’s a common structure especially for nonfiction, but I enjoyed the meta-ness of it.
Tangentially related: I recently read American Kingpin, a book about Ross Ulbricht. The author starts by saying something like, “My mother had an unusual way of reading books. She would read the end first, then go back and start from the beginning. She enjoyed piecing together how the story got from A to B.” I realized that spoilers have never bothered me, for the same reason.
You might try reading the article.