RAPID CITY, S.D. (AP) — A Rapid City woman who killed her boyfriend has been sentenced to six years in prison.

Forty-four-year-old Corinne Vermillion last month pleaded guilty to manslaughter in a plea deal with prosecutors in which she avoided a murder charge and a possible life sentence in the January death of 37-year-old Donny Ladeaux.

Authorities say Vermillion stabbed Ladeaux in the heart with a kitchen knife during an alcohol-fueled argument.

Judge Heidi Linngren said during Tuesday's sentencing that she didn't give Vermillion the maximum sentence of 10 years in prison because she thinks Vermillion has a future. But Linngren also said the death of Ladeaux could have been avoided.

Vermillion gets credit for nearly a year that she's already spent behind bars. She'll be eligible for parole after slightly more than two years.

Copyright 2015 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.