Idaho police looking for ‘Rambo’-style knife after four students murdered

Scott Jutte, Moscow Building Supply's general manager, told the Idaho Statesman on Wednesday that his store has been visited multiple times this week by police enquiring about the possible sale of any Ka-Bar brand knives, commonly known as K bar knives.

These military-grade blades were originally designed to be used by U.S. Marine Corps during World War II, the latter adopted by other branches of the military. Jutte described the weapon as "similar to the knife Rambo has," in reference to the Vietnam war vet character played by Sylvester Stallone.

"They were specifically asking whether or not we carry Ka-Bar-style knives, which we do not," Jutte said. "It's more of a combat knife, it’s not really something that we specialize in," adding that his store mostly specializes in hunting equipment and home improvement supplies.

Ka-Bar is a manufacturer based out of Olean, NY, that specializes in these kinds of military-grade weapons, but their specific style of knife, with a six-inch blade on one side and a serrated edge on the other, has been duplicated by other companies over the years, so it is uncertain whether this was the brand used.

These new details emerged just one day after Moscow police released details of the attack, including the victims' names and the fact that it was a "targeted attack" with an "edged weapon" such as a knife.

For several days after the incident, police wouldn't release any information about how they died. Many details about the crime are still unknown and the killer is still on the loose.

The crime scene has been described by investigators as like something they have never seen before, and there was "blood everywhere". Photos released on Wednesday show blood oozing out of the side of the house.