'Stay vigilant': Chilling warning to visitors at University of Idaho graduation sparks worry that killer may attack again

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The police department encouraged citizens to practice personal safety precautions despite the increased security. "As always, we want to remind the public to stay vigilant, travel in groups, and communicate with family and friends as you travel," the police said. Speaking to The US Sun, the police said, that "this statement always rings true." The warning comes after investigators have been looking for the murderer of Xana Kernodle, 20, her boyfriend, Ethan Chapin, 20, and her roommates, Madison Mogen and Kaylee Goncalves, both 21. 

Police also issued a warning against "harassment" brought on by online rumors about the murders after one of the victims' sisters lambasted investigators. According to authorities, speculation has resulted in the intimidation of individuals who may or may not be connected to the case.

According to the police, social media users propagated online rumors about potential persons of interest, which resulted in this intimidation, and the officials handled this issue on Friday, December 9. Police have only given minimal data on the deaths of the students so internet sleuths are searching for hints.

Moscow police stated on Friday, "Investigators have been monitoring online activity related to this ongoing and active case," The Sun reported. They claimed that investigators "are aware of the large amount of rumors and misinformation being shared as well as harassing and threatening behavior toward potentially involved parties."

"Anyone engaging in threats or harassment whether in person, online or otherwise needs to understand that they could be subjecting themselves to criminal charges," the cops said. They added, "Moscow Police Department cautions the public not to rely on rumors and remains committed to keeping the public informed. We urge reliance on official channels for accurate information."

Since the killings, no one has been arrested, leaving grieving families and confused college students in need of answers.