Sheila Eddy appeared emotionless as she stood in court Friday, pleading guilty to the stabbing death of her former best friend and being sentenced to life in prison.

Eddy and Rachel Shoaf, both 18, confessed to luring Skylar Neese to accompany them for a drive into the rural Pennsylvania mountains, not far from Morgantown, West Virginia where they all lived, and then repeatedly stabbing her.

They covered her body with dirt and twigs and then went about their business as if nothing had happened.