SPRINGFIELD, MASS. >> A Springfield woman accused of using her vehicle to run down and kill another woman she thought had stolen her boyfriend has been found guilty of voluntary manslaughter.

The Republican reports Ana Mercedes Franceschi was sentenced Tuesday in Springfield to nine to 12 years in state prison. Jurors acquitted Franceschi of an assault charge.

Prosecutors say the 42-year-old Franceschi thought 32-year-old Yasmin Marin caused the breakup with her boyfriend, and ran her down as the victim crossed the street with her teenage daughter in February 2013. Franceschi fled the scene.

The boyfriend has said that he and Marin were not romantically involved.

The defense argued Marin intentionally walked into the road to stop Franceschi's car, and Franceschi didn't have time to stop.

Information from: The Springfield (Mass.) Republican, http://www.masslive.com/news/