mans wife leaves him for car salesperson, he ends up with owner of car dealership
yes. he actually kills the salesman, by painting him pink and using a taser. The widow gets ownership and hires the killer--who works in a factory making brake shoes. don't remember the name, but the author is well-known for burn the bitch stories.
No murder, same themes:
Yakima by Coaster2
Danny's Dilemma by papatoad