Kiera Bergman

Phoenix police call the case an "active homicide investigation."
The missing teen's dad said he "knew that from the beginning."
Jon Christopher Clark has been arrested for multiple crimes allegedly uncovered during a search of his property.
Jon-Christopher Clark said the so-called lie detector tests are not admissible in court and he didn’t want an "interpretation on my feelings."
Kiera Bergman's disappearance is "unique," an investigator said.