The family of a daughter killed in the University of Idaho stabbings believe the killer left a 'mess' of evidence and was 'sloppy'.
21-year-old Kaylee Goncalves was brutally killed, along with her friends Madison Mogen, 21 ,Ethan Chapin, 20, Xana Kernodle, 20, at a rental house in Moscow, Idaho during the early hours of November 13.
Parents Steve and Kristi Goncalves described how the killer responsible for their daughter Kaylee's death left a 'mess of evidence'.
Steve told Fox News : “They’re telling us that there’s so much evidence that it’s going to take a lot of time to process it all.
“This wasn’t like a pinpoint crime. This person was sloppy.”
Moscow Police Department entered the second week into the investigation with still no suspect found.
The heartbroken parents claimed cops were still unable to confirm if they had DNA from the killer - despite setting up a mobile crime unit at the scene.
Steve added: "The killer made a mess there, and they’re going to have to go through that point by point."
Cops have previously said the attack was targeted but have failed to release any further information.
Moscow Police Chief James Fry said: “It was a complex and terrible crime and it will take some time to resolve.
“We believe they’re targeted because we take a totality of all the circumstances we’re looking at. Do we know any one person that was targeted?
“We’re not able to say at this point in time due to our investigation, but we still believe that.”
Moscow police confirmed more than 90 interviews had been conducted so far and the force had received at least 646 tip-offs.
The investigation continues amid a mountain of evidence, including phone calls left on one of the roommates' mobile phones.
At about 11.58am on November 13, a 911 call was made by one of the roommates, according to Moscow Police Department.
Kaylee's sister, Alivia Goncalves, had alleged her sibling called a young man named Jack seven times on the morning she died, while Madison phoned him three times.
She told Inside Edition : "At 2.26am Kaylee starts to call Jack. Kaylee calls Jack six times between 2.26am to 2.44am, from 2.44am to 2.52am Maddie calls Jack three times, then Kaylee makes a final call to him at 2.52am... and they are both never heard from again."
Police said there was no sign of a forced entry when officers responded to the urgent call after 911 was called.
The case is still under investigation by Moscow Police who are being assisted by the Idaho State Police and the FBI.