He said the gunman, who was studying for a doctoral degree, had been under investigation at the university after he accused a number of staff members of being followers of US-based cleric Fethullah Gulen, whom Turkey blames for a failed coup in 2016.
The state-run Anadolu agency said the attack occurred on April 5 at Osmangazi University in the city of Eskisehir.
Footage from the scene showed several police officers and medical staff in the area, while students and university staff were treated at ambulances.
A research assistant shot dead four staffers of a university and injured three others in central Turkey, according to security officials, Anadolu Agency reports.
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However, Samsung's feature used a motion sensor on the phone's bezel rather than technology built into the display panel. The 10th anniversary iPhone's OLED display curves slightly at the bottom though it isn't that visible to the human eye.
"In this unfortunate event, vice dean Mikail Yalcin, faculty secretary Fatih Ozmutlu, teaching faculty Serdar Caglak and researcher Yasir Armagan lost their lives".
President Recep Tayyip Erdogan later met YOK head Yekta Sarac, who briefed him about the attack.
Ayse Aypay, a professor at the university, told Turkish media that some members of staff had "repeatedly filed complaints" about the gunman.
Turkish Governor Ozdemir Cakacak said the Chief Public Prosecutor's Office in Eskisehir province had appointed three prosecutors to probe the incident.