Moonstalker

In the 1989 American slasher film "Moonstalker", a series of gruesome murders unfolds in the woods near Reno, Nevada, targeting two groups: a family camping excursion and a group of wilderness training campers. A deranged killer, revealed to be a mentally unstable man named Bernie, stalks his victims with precision, using his knowledge of the forest and his own twisted backstory to exact a bloody revenge on unsuspecting tourists. As the body count rises, a detective, Tom Taylor, is tasked with uncovering the identity of the killer, but Bernie's cunning and brutality prove to be a formidable challenge.