Digital Original Teenager Killed 16-Year-Old Girl He Met Online oxygen Insider Exclusive! Create a free profile to get unlimited access to exclusive videos, sweepstakes, and more! Sign Up for Free to View Teenager Killed 16-Year-Old Girl He Met Online On May 7, Michael Gavin Campbell, 17, pleaded guilty to first-degree manslaughter of 16-year-old Shayna Ritthaler of Wyoming. Watch the Full Episode
