Of the four University of Idaho students who were found stabbed to death in a rental house last Sunday, some were killed in their beds, the Latah County coroner told CBS News Friday.
On Thursday, Mabbutt told CBS News the students were killed with a "larger knife," expanding on the autopsy reports which concluded the four victims were stabbed to death.
The killings have shaken Moscow, an Idaho Panhandle town of 25,000 residents that last saw a homicide about five years ago.
Officers have not identified a suspect or found a weapon, Moscow Police Chief James Fry has said.
All four victims were members of fraternities and sororities: seniors Madison Mogen, 21, of Coeur d'Alene, Idaho, and Kaylee Goncalves, 21, of Rathdrum, Idaho; junior Xana Kernodle, 20, of Post Falls, Idaho; and freshman Ethan Chapin, 20, of Mount Vernon, Washington.
There was no sign of forced entry at the home, according to the chief, and a door was found open by the first police officers to arrive