A Brooks family is shocked and angry at the sentence given to the man who admitted to killing their teenage daughter.

Colin Winsor, 34, was to stand trial on second degree murder charges in the death of 17-year-old Ashton Moen.

But in a surprise move on Tuesday he pleaded guilty to manslaughter.

Winsor has been sentenced to 10 years behind bars, but after time served that means he'll serve 44 months in jail.

The teen's body was found dumped in a ditch near Brooks in July, 2006 after missing for nearly two weeks.

The pair worked together at the local Walmart.

In an agreed statement of facts, Winsor said the couple argued in his apartment, he punched her in the throat and dumped her body.

Winsor was originally convicted of second degree murder and sentenced to life in prison.

He appealed and won a new trial.

He cut the plea deal with the Crown after key evidence in the case became inadmissible.