Stinger Maguire - kindle book by Mike Bove

This is the second Bruce DelReno Mystery.
A popular golf pro is murdered when he returns to his hometown for a charity event.
When his secret is uncovered it becomes a bigger story than his death, and leads to several surprises.
Bruce DelReno, retired postman and avid golfer, becomes obsessed with finding the killer. The police seek Bruce's help since suspects and witnesses would rather talk to him.
The story is packed with the humor, food, golf, characters, and dialogue that fans of "Willowtree" have enjoyed.