Robert B. Parker’s Night Passage

After a busted marriage kicks his drinking problem into overdrive and the LAPD unceremoniously dumps him, the thirty-five-year-old Stone’s future looks bleak. So he’s shocked when a small Massachusetts town called Paradise recruits him as police chief. He can’t help wondering if this job is a genuine chance to start over, the kind of offer he can’t refuse.

This is the first of the Jesse Stone sieries.  Tom Selek played him on tv for at least two of the books, although I didn’t watch that movie.