Former Fiancé Arrested and Charged with Murder in Cold Case

Acquaintances of John Carter, who was arrested on two counts of murder in connection with the death of his former fiancé Katelyn Markham, describe him as a "great" person with an infectious sense of humor and work ethic. However, investigators say his timeline of events did not match up and phone records proved he was lying or not remembering. Carter was the last person to see Markham alive and called 911 to report her disappearance. Prosecutors are not revealing many details about what led to Carter's arrest to protect the investigation.