John Tietsort

A former substitute teacher in northwest Iowa is going to prison for having sexual relationships with students.

Thirty-three-year-old John Tietsort was arrested last August. Investigators said Tietsort had improper relationships with female students while he was substitute teaching at Odebolt-Arthur-Battle Creek-Ida Grove High School and at Maple Valley-Anthon-Oto High School.

Tietsort pleaded guilty to two counts of sexual exploitation by a school employee and was sentenced this week to 10 years in prison.