Oh brother. I do like his books, but won’t get that one.
It's well reviewed.
Best book I ever red was Truman Capote's In Cold Blood, but it was criticized because of its focus on the killers. But that was the story he chose to tell.
He interviewed the killers, and they signed releases for him to use their information.
If someone interviews Kohberger, and he is slightly reimbursed for co-operation, I'm sure it would be ear-marked for the fines the Judge imposed today.