Idaho police have looked into a popular theory one of the victims had a stalker ... and while the department thinks it found the person in question, it's saying the incidents don't seem to be connected.
Moscow PD says they investigated and identified an incident from mid-October where Kaylee Goncalves told friends and family about a potential "stalker" in her life.
Cops reportedly say Kaylee went to into a local business, where 2 men were inside. The authorities believe 1 of them may have continued to follow her around the business, and as she headed back to her car -- although they don't think he made any contact with her.
Detectives say they've contacted both men, who told them they were trying to meet women at the business ... but the PD is now saying there's no evidence that points to them as being involved in the gruesome murders.
FYI -- rumors about the stalker theory have been circling for weeks, and Kaylee's father recently revealed in an ABC News interview that his daughter did mention a potential stalker before her death.