15th and likely the last person to be be sentenced in the case. >> i know that it is going to be a long time, and i know that i'm going to be severely punished, you know, for what i'm responsible for. >> at the federal courthouse, the family of christian bjerk is headed inside and they have been at most of the sentencing, and the hearings to show this video and pictures of their 18-year-old son before and after he was found dead on a grand forks' sidewalk. carlton is struggling of what to say to them, and struggling knowing that he could spend the next two decades and as long as the rest of his life behind bars. >> are you nervous? >> make no mistake, it is going to completely change my life and i will never be able to come back home, and go home to the same place where i left where whether it is 10 or 20, and i'm extremely nervous. i owe an apology to so many