In a tweet on Tuesday, Brian Entin of NewsNationNow shared a video of investigators entering the 1122 King Road residence where Kaylee Goncalves, 21, Madison Mogen, 21, Ethan Chapin, 20, and Xana Kernodle, 20 were fatally stabbed last month.

“Two investigators just showed up to the house in Moscow, Idaho where the murders happened. They were carrying a black case and inside for about 20 minutes. I saw them through the window on the 2nd floor. They did not answer my questions when they left,” Entin wrote in the tweet.

The video comes as police continue to investigate the quadruple homicides and as of Tuesday, December 20, no suspect or person of interest has been identified. Police have also been unsuccessful in finding the weapon but previously said that they believe a fixed-blade knife was the type of weapon used in the crime.

One of the main leads police in Moscow have been following is a white Hyundai Elantra that was believed to be in the area of the crime when it was committed. On Monday, there was speculation online that a similar vehicle was abandoned in Eugene, Oregon, and could possibly be connected. However, a spokesperson for the Eugene Police Department told Newsweek, “We have no information to indicate the vehicle is related to the Moscow, Idaho, case.”

The spokesperson told Newsweek earlier on Tuesday that the Eugene Police Department had sent information about the vehicle to the Moscow Police Department.

“Investigators are aware of a Hyundai Elantra located in Eugene, Oregon. We are working with the local jurisdiction to determine if the vehicle is related to our case,” the Moscow Police Department said in an updated statement on Tuesday afternoon.

Moscow Police Chief James Fry also spoke on Tuesday about the levels of experience those working the case currently have.

“I have an excellent Command Staff, with over 90 years of combined experience, overseeing the investigation’s daily operation, and I select who runs the investigative teams,” Fry said. “We are supported by highly trained and experienced personnel from the Idaho State Police and the FBI. Their continued resources and knowledge are vital to our success. Our investigative units work under a unified structure and have the autonomy to move forward and solve this case.”

Newsweek reached out to the Moscow Police Department for further comment.