Police say they are looking for the car and any occupants, who may have information about the case.
BBC News, Washington
They were found stabbed to death in their beds on Sunday 13 November in an off-campus rental home they shared with some housemates in the college town. In the latest operational update on Thursday from Moscow police, they said they believed that the one or more occupants of the car might have "valuable information" in the case.After being inundated with tips about the vehicle, Moscow police began redirecting calls to an FBI call centre, which the department said "has the resources to take those calls, categorise them and send them on to investigators so they can utilise those tips in the investigation".
To date, detectives working on the investigation have received over 2,770 calls with tips, as well as nearly 2,700 emails and more than 1,000 "digital media" submissions.
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