Cody Barnoski, 15, was charged with the first-degree murder of his mother, Michelle Barnoski, in Warkworth, Ont., about 50 kilometres southeast of Peterborough, Ont., after an apparent argument over skipping school. Michelle Barnoski was shot eight times in the head and neck and brutally beaten. The court hearing at trial there were signs of blunt force trauma to her head and that both bones in her left arm and one in her right hand had been broken. Cody Barnoski received an adult life sentence in Oct. 2010 with no possibility of parole for seven years, while Marc Vickers, 34, who lived with the two as a roommate and landlord, was also convicted the following month. Barnoski, 33, was buried in her own backyard shortly after her death, but police didn’t find her for two weeks, after her son and Vickers covered up the crime. Barnoksi’s sisters reported her missing after Cody said she hadn’t returned home after she stormed out of an argument. She was last seen on May 27. Her body was discovered on June 12.