More than six weeks after four University of Idaho students were found fatally stabbed in the off-campus rental house they shared, police have still not identified a suspect. They, however, ruled out a professor who has been the subject of videos posted on TikTok by a self-proclaimed sleuth. 

The City of Moscow Police Department released a statement Tuesday again urging people to come forward with any information that might be helpful in its investigation into the Nov. 13 killings of Ethan Chapin, 20; Kaylee Goncalves, 21; Xana Kernodle, 20; and Madison Mogen, 21.

“Investigators believe someone has information that adds context to what occurred on the night of the murders and continue requesting additional pictures, video, and social media content,” the statement said. “Our focus remains on the investigation, not an individual’s activities displayed in the tip. Whether you believe it is significant or not, your information might be one of the puzzle pieces that help solve these murders.”

Police said Tuesday they are still searching for a 2011-13 Hyundai Elantra that was believed to be in the immediate area around the time of the killings. Investigators are making progress after identifying more than 22,000 vehicles that could be the one they’re looking for.

Police said they don’t believe Rebecca Scofield, the chair of the University of Idaho history department, had any involvement in the killings. A TikTok personality and tarot card reader, Ashley Guillard, has repeatedly accused Scofield of working with Goncalves’ ex-boyfriend, Jack DuCoeur, to plan the murders. Guillard has claimed Scofield, too, was romantically involved with Goncalves.

Police have ruled out DuCoeur as a suspect.

Scofield last week filed a defamation lawsuit against Guillard, in Idaho’s U.S. district court.

The lawsuit says Scofield not only never had a relationship with Goncalves but had never met or taught of any of the victims. She also has never met DuCoeur, according to the lawsuit.

“Ashley Guillard — a purported internet sleuth — decided to use the community’s pain for her online self-promotion,” the lawsuit says.

Guillard has posted dozens of videos since Nov. 22 accusing Scofield of ordering the murders. The videos have been viewed millions of times, “amplifying Guillard’s online reputation at the expense of Professor Scofield’s reputation,” the lawsuit says.

“They have caused her significant emotional distress,” the lawsuit says. “She fears for her life and for the lives of her family members. She has incurred costs, including to install a security system and security cameras at her residence.”

Before being served with the lawsuit but aware of it last week, Guillard said on TikTok that she was “actually gleaming with excitement.”

“I am going to immediately start planning because I cannot wait to present my ideas in court regarding Rebecca Scofield and her role in the murder of the four University of Idaho students,” Guillard said.

In a separate video earlier this week, she claimed to have “physical evidence against Rebecca Scofield that validates everything that I’ve said about her.”

Correction: This article was updated to correct the spelling of Kaylee Goncalves' last name.