Noelle Paquette was last seen alive Dec. 31, 2012. (Handout)

A judge in St. Thomas, Ont. has sentenced the killers of a southern Ontario kindergarten teacher Noelle Paquette to life in prison with no chance of parole for 25 years.

Tanya Bogdanovich and Michael MacGregor both pleaded guilty to first degree murder last December.

Paquette's body was found in January 2013 in a woodlot southeast of Sarnia, Ont. one day after she went missing. She was last seen leaving a New Year's Eve party. 

During the sentencing hearing the Crown attorney said Bogdanovich and MacGregor raped and murdered Paquette, fufilling a 7-month BDSM fantasy for the two. 

Each of the accused read statements to the court before they were sentenced.

MacGregor said he didn't know what possessed him to act the way he did, but he apologized to the family of the victim. 

In her statement, Bogdanovich said she realized she caused immense pain and suffering to Paquette's family and friends. She said she was sincerely sorry but realized the word 'sorry' didn't begin to scratch the surface of a wound felt so deeply by so many.

The judge told the couple their actions were vile and despicable and said they will be removed from society for the rest of their lives. But he noted both admitted guilt in the case, sparing a trial and he said for that, they should be commended.

He then sentenced them to life in prison with no chance of parole for 25 years.