Two of the four students killed near a university campus in the US had made 10 phone calls to a man called 'Jack' just minutes before their death, it is claimed.
Madison Mogen, 21, Kaylee Goncalves, 21, Ethan Chapin, 20, and Xana Kernodle, 20, are believed to have been stabbed to death at a student home in Moscow, Idaho, on November 13.
The killings likely occurred between 3am and 4am that day, and the bodies were found around noon.
