Criminal Enterprise, by Owen Laukkanen

This is the second novel by Mr. Laukkanen, and it is as good as his first.   He stuck with the same main characters, FBI Agent Carla Windermere, who doesn't work well with others and is a bit of a hot shot, and Minnesota state investigator Kirk Stevens, who wants to treat his job as just a job so that he can be a reliable family man - but who gets sucked into dangerous situations with Agent Windermere nonetheless.

This is a wonderful novel, although the body count did get a bit high for my taste.

Criminal Enterprise (A Stevens and Windermere Novel)