Unsealed Indictment Reveals Secret Murder in Katelyn Markham Case.

John Carter, Katelyn Markham's fiancé, has been indicted on two counts of murder in her 2011 slaying. He was arrested by Secret Service Officers and is being held without bond at the Butler County Jail. Carter was the last person to see Katelyn alive and called 911 to report her disappearance. Her remains were discovered in 2013. This is the second arrest in the investigation, with Jonathan Palmerton previously arrested for perjury. Prosecutors are not revealing many details about what led to Carter's arrest to protect the investigation.