Seven months for murder

Wife who shot preacher calls sentence too short

"Seven months in custody wasn't a long enough sentence for what she did, Mary Winkler said Wednesday in an exclusive, pre-recorded interview with Oprah Winfrey.
Winkler was convicted earlier this year of the shotgun slaying of her husband, Matthew, at the time the minister of the Fourth Street Church of Christ in Selmer, Tennessee."
(http://www.cnn.com/2007/US/law/09/12/winkler.oprah/index.html)

Physical abuse or not ... seven months? What on earth is wrong with our justice system that someone walks away from a premeditated murder without spending but one year behind bars?
Now, I sympathize with women who are victims to their abusive husbands, so there's a factor right there for a somewhat lighter punishment, but seven months?!

Whatever happened to filing charges, having a doctor document the marks of abuse and building a court case for a divorce, followed by a restraining order?*
What, is whipping out a shotgun and manslaughter encouraged now?
Silver lining: She realizes this herself as well, so I hope she'll pay her price to society in some other way.

*And by restraining order, I mean both a court order and a concealed carry permit.