Police in Moscow, Idaho, said they were unable to screen or identify a stalker of one of the slain University of Idaho students, 21-year-old Kaylee Goncalves.
“Investigators have been intensively delving into the information they have received that Kaylee Goncalves has a stalker. They have investigated hundreds of pieces of information on the matter and have not been able to verify or identify a stalker,” Moscow police said. “If you have any information that can assist detectives, please contact the tip hotline at 208-883-7180 or email [email protected]”
The update came after authorities said earlier in the day they were aware of reports Goncalves may have a stalker.
“We are aware of and are investigating these various reports,” Idaho State Police spokesman Aaron Snell told ABC News on Tuesday.
The other students killed in the off-campus home in the early hours of November 13 were Ethan Chapin, 20; Chapin’s friend Xana Kernodle, 20, and Goncalves best friend, Madison Mogen, 21.
Although no suspects are in custody more than a week after the four students were stabbed, Snell said he remains “optimistic.”
“Somewhere out there is a piece of evidence that will help us solve this case,” he said.
Parishioners are afraid, Snell said, but they are also patient. While police can’t release certain information, Snell said, “We keep working hard and want the community to know what we’re doing.”
More than 100 investigators, officers and support workers collected about 600 tips, officials said Sunday. According to the Moscow Police Department, the incoming tips were processed, checked and deleted.
Investigators said they are looking for surveillance footage and are asking for tips from anyone “who have observed suspicious behavior.”
Investigators have also released timetables detailing the whereabouts of the victims and the other students who lived in the off-campus home.
Brad Garrett, an ABC News contributor and former FBI agent, told Good Morning America Monday that the killer or killers may have been familiar with the layout of the house.
“It tells me someone came into the house with a level of comfort — that they probably knew their way around the house,” Garrett said.
The Moscow Police Department said it had deployed four detectives, 24 patrol officers and five members of its support staff to the investigation. They are joined by a wave of outside investigators who have taken over Moscow, a college town of about 25,000 people.
The FBI sent 22 investigators to Moscow, according to local police. Another 20 agents worked on the case but were in Treasure Valley, Idaho; Salt Lake City, UT; and West Virginia. Two members of an FBI behavior analysis unit were also working on the case, police said.
The murder weapon remains missing, the police said.
Two roommates were in the house at the time of the murders and, according to police, appeared to have overslept the crimes.
A 911 call was placed on one of the cellphones of the surviving roommates from inside the home on Nov. 13, police said. The roommates told authorities someone had passed out and would not wake up, officials said.
“Several people spoke to the 911 dispatcher before a Moscow police officer arrived at the scene,” officials said. “Officials entered the residence and found the four victims on the second and third floors.”
Garrett said investigators should broaden their search beyond the victims’ immediate circle of friends and family.
“They have to start expanding to people that they’ve only had a casual relationship with,” he said.
ABC News’ Emily Shapiro, Kayna Whitworth, Connor Burton, John Capell, Melissa Gaffney, Marilyn Heck, Izzy Alvarez, and Flor Tolentino contributed to this report.