pussreboots, Five stars: Killer Run by Lynn Cahoon and Susan Boyce (Narrator) (2015) is the fifth book in the Tourist Trap mystery series. Jill Gardener has been pressured into sponsoring a 5K race through her seaside town. When her aunt's boyfriend collapses from heat exhaustion, he stumbles over the body of the race's organizer.
http://pussreboots.com/blog/2023/comments_11/killer_run.html