Idaho police have shared new bodycam footage from the night four university students were killed.
Four University of Idaho students were tragically found stabbed to death in their shared home near the university campus on Sunday 13 November.
The victims have been named as Ethan Chapin, 20, Madison Mogen, 21, Xana Kernodle, 20, and Kaylee Goncalves, 21.
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You can take a look at the bodycam footage below:
The clip was recorded around 3:00am - the time authorities believe the murder took place.
Police stopped three people In a field near the victims' home for an unrelated alcohol offence.
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Two victims - Xana Kernodle and Ethan Chapin - were in the area earlier that night, police say.
The people shown in the clip above were all cleared and the incident was not related to the killings.
"It can be used from a historical standpoint. That information could potentially become relevant later in the investigation, you just never know," former FBI agent, Brad Garrett, told ABC.
Autopsies performed on the four University of Idaho students suggest that their murders were 'personal'.
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Latah County Coroner Cathy Mabbutt told the Moscow-Pullman Daily News that the murder weapon 'would have had to been a large knife' which investigators have not yet located.
Mabbutt said they may have found some 'defensive wounds' on the bodies of the victims, suggesting they had fought back against their attacker.
However, the Moscow Police Department said they aren't totally sure if the students were 'specifically targeted'.
The statement said: "The Latah County Prosecutor’s Office stated the suspect(s) specifically looked at this residence, and that one or more of the occupants were undoubtedly targeted. We have spoken with the Latah County Prosecutor’s Office and identified this was a miscommunication. Detectives do not currently know if the residence or any occupants were specifically targeted but continue to investigate."
Moscow Police Chief James Fry added: "We cannot say there’s no threat to the community, and as we have stated, please stay vigilant, report any suspicious activity and be aware of your surroundings at all times."
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With regards to the killer, Fry questioned why someone with a motive against one person, would want to kill all four.
He said: "Why would you go to the trouble to kill four people if in fact you're upset, angry or have revenge against one of them?"
Investigations are ongoing.