(Hillsboro, OR)  --  A man who was convicted of killing his ex-girlfriend while he was on a day pass from jail is scheduled to spend the rest of his life in prison.  Eric Christopher Petersen received the sentence after pleading guilty in a Washington County courtroom.  Prosecutors say Petersen was serving time in a minimum-security transitional facility in Hillsboro and had a day pass to go to a job search service when he killed 24-year-old Amie Zdrantan in August 2014.