Ex-teacher gets 8-10 years in sex case

Kelsey Peterson, 27, pleaded guilty in January to two state counts of first-degree sexual assault of a minor. She is to serve her sentence simultaneously with a six-year federal sentence for transporting a minor across state lines to have sex. She also must register as a sex offender.

Authorities said Peterson, who was the boy's sixth-grade math teacher at Lexington Middle School during the 2005-06 school year, started having sex with him in November 2006.

They said she fled with him to Mexico after the district's superintendent confronted her about allegations of an inappropriate relationship with the boy.