>> at the federal courthouse the family of christian bjerk is already heading inside. they have been at most of the hearings and sentencings to show this video and pictures of their 18-year-old son before and even after he was found dead on a grand forks sidewalk. carlton is struggling what to say to them. he is also struggling knowing he could spend the next two decades and as long as the rest of his life behind bars. >> you're nervous. >> make no mistake, it's going to completely change my life. i'll never be able to come back out and go home. to the same place i left. whether it be 10 or 20. and i am extremely nervous. and i owe an apology to so many people. and i've been grappling with how to do it. every person in that courtroom i owe an apology to, on both sides. including this community.