The Ex Who Hid a Deadly Past (Charley's Ghost) by Sally Berneathy

Book 5 in Charley's Ghost seriesWhen a deadbeat customer becomes obnoxious in Amanda's motorcycle shop, she grabs a hammer and threatens to bash his head in so far he will be able to see his dirty underwear. Three weeks later the deadbeat is found murdered in her parking lot. Customers from the bar down the street report that Amanda left with him the night of the murder. Strands of Amanda's red hair are found on the victim. The deadbeat's ghost accuses her of murdering him. Charley cannot...or will not...provide an alibi. The situation goes downhill from there.