Authorities now believe that a single terrorist conducted the attack in a sniper ambush from the side of the road.
Private broadcaster Polsat News reported that a woman's severed head and an axe had been found at the university.
No one was injured in the shooting. The verdict did not mention any motive for the attack.
Eyewitnesses told local media that a man was seen with guns, a crossbow, and a bat shortly before the attack happened.
The attack occurred in Pahalgam, a popular destination in the scenic, mountainous region where mass tourism has resurged as Islamist terrorist violence has eased in recent years.
Israeli media reported that items belonging to the victim have been recovered, but that the swimmer who was attacked by sharks is still missing.
The local Jewish community thanked the police service for their "focus, hard work and drive to get these horrible people off of our streets."
A CNN investigation has revealed that Iran is allegedly using criminal gangs in Sweden to target Israeli and Jewish interests, with concerns over recruitment of minors.
A suspect decided to purchase a vehicle to run people over with before planning to stab the ramming victims with knives at a central bus stop in Jerusalem.
The attacker was a minor, according to a social media statement by French Interior Minister Bruno Retailleau.