The first incident happened just before 4:30 p.m. Monday in the 1911 Building on campus. Almost 20 minutes later, another incident was reported at Ricks Hall.
The suspect was seen in surveillance footage wearing a a red, short sleeve shirt with a N.C. State logo on it.
Pictures from the surveillance video were later released, leading to numerous tips about the possible identity of the suspect.
"Almost immediately this morning we began to receive multiple phone calls from the campus community providing us with information about the identity of the individual in the photo,"NCSU Police Chief Jack Moorman said.
Tuesday morning, campus police arrested Korey Jamal Williams on two counts of secretly peeping. He is currently being held at the Wake County Detention Center under a $4,000 bond.