The Springfield News-Sun reports that 52-year-old Hollant "Max" Adrien was arrested on rape and kidnapping charges.
Adrien, who teaches French at Wittenberg University, pleaded not guilty Wednesday.
Springfield police say Adrien has been connected to two rapes in the area, as well as the attack on a 17-year-old earlier this month. In that case, the teen pushed away his attacker and grabbed the assailant's bag and cellphone as he fled.
A subpoena of cellphone records identified Adrien as the suspect, and victims identified him in a photo lineup.