Duane Hoffmeyer 
The Campground Killer [EPUB ebook] 

When a young couple on a camping trip to Seaside, Oregon, disappear from their travel trailer with no explanation, a criminal justice student who is working at the park as a security guard makes the discovery and reports it to authorities. When the police don’t seem to want to follow up on any leads, he takes it upon himself to find out what happened as he suspects foul play. In his investigations, he sheds light on similar cases from other campgrounds that leads to new information that may put his life at risk.