From Amazon:
Before he retired, J. P. Beaumont had looked forward to having his days all to himself. But too much free time doesn’t suit a man used to brushing close to danger. When his longtime nemesis, retired Seattle crime reporter Maxwell Cole, dies in what’s officially deemed to be an accidental fire, Beau is astonished to be dragged into the investigation at the request of none other than the deceased victim himself. In the process Beau learns that just because a long-ago case was solved doesn’t mean it’s over.

In the Book Box.