why kill skyler? reason rachel's given is simple and sickening. >> because they didn't want to be friends with her anymore. which is sick. if you don't want to be friends with somebody, leave them alone. don't murder them. >> reporter: what do you want to say to these two girls? >> rot in hell. how's that. that's exactly what i want them to do. i want them to go through that pain and agony my daughter went through. i want them to have no life because skyler doesn't have one. >> it's such a disturbing story. what is next for these two teenaged suspects? >> reporter: anderson, 16-year-old rachel had been charged with first degree murder but after leading authorities to skyler's body in the woods, she cut a plea deal. she pled guilty earlier this month to second degree murder but she still could get 40 years in prison, anderson. now, the other girl, the other suspect who hasn't been named, she is still charged as a juvenile with first degree murder although a judge could charge her as an adult. we're wai