Authorities are looking for a "Rambo"-style knife in connection to the grisly slayings of four University of Idaho students, according to a local report.

Scott Jutte, general manager of Moscow Building Supply, told the Idaho Statesman on Wednesday that police had visited the store more than once asking if any Ka-Bar brand knives had been sold.

"They were specifically asking whether or not we carry Ka-Bar-style knives, which we do not," Jutte said in an interview with the local paper.

 "If we did, we could’ve reviewed surveillance footage. But it wasn’t something I could help them with," the manager continued.

UNIVERSITY OF IDAHO MURDERS TIMELINE: WHAT WE KNOW ABOUT THE SLAUGHTER OF FOUR STUDENTS

Ka-Bar knife inset in front of house where students were murdered.

Police suspect a Ka-Bar knife may have been used in slayings of four University Idaho students, inset. Caution tape surrounds the house near campus where the students were killed. (Ka-Bar / Derek Shook for Fox News Digital)

A police officer had most recently stopped by the home improvement store on Monday, he said. 

Ethan Chapin, 20; Madison Mogen, 21; Xana Kernodle, 20; and Kaylee Goncalves, 21, were stabbed to death early Sunday morning with an "edged weapon," according to police.

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They were found after police responded to a 911 call reporting an unconscious person at the King Road home where the victims lived with two female roommates. Authorities have not named a person of interest and do not have a suspect in custody.

A split photo of the deceased students.

From left, University of Idaho students Ethan Chapin, 20; Xana Kernodle, 20; Madison Mogen, 21; and Kaylee Goncalves, 21. (Jazzmin Kernodle via AP/Instagram/ @kayleegoncalves)

Coroner Cathy Mabbutt told Fox that the same knife was likely used to kill all four students. The autopsy findings are expected this week.

Moscow Police Capt. Anthony Dahlinger declined to comment on the interview with Jutte or their search for the murder weapon. 

UNIVERSITY OF IDAHO MURDERS: THREAT STILL POSSIBLE WITHOUT ANY SUSPECTS IN CUSTODY, POLICE SAY

Ka-Bar knives are about 6 inches long and "similar to the knife Rambo has," Jutte said. They have a blade on one side and a serrated edge on the other. The combat knife was issued by the U.S. Marine Corps in the 1940s, according to the company’s website. 

University of Idaho victims

The four victims in the University of Idaho slayings. (Instagram: @kayleegoncalves)

The knife was later adopted by the Marines, the Army, the Navy, the Coast Guard and the Underwater Demolition Teams.

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The knives are widely used by survivalists and outdoorsmen, according to Ka-Bar. 

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At a press conference Wednesday, Moscow Police Chief James Fry said investigators are pursuing every lead and believe it was an isolated, targeted attack based on the evidence at the scene. 

He urged locals to "stay vigilant" as the "individual is still out there."

Haley Chi-Sing contributed to this report.