Cell phone pings, garbage dumps a parked trucks offer clues in probe of missing Colorado mom Kelsey Berreth

The investigation into what happened to missing Colorado mom Kelsey Berreth is intensifying with new information about her fiance's movements, although Patrick Frazee has not been named a suspect in the case. Nancy Grace looks at the latest with a panel including Holly Hughes, Atlanta criminal defense lawyer a former prosecutor Holly Hughes,  psychologist a lawyer Dr. Brian Russell -- host of Investigation Discovery's "Fatal Vows" series, private investigator Vincent Hill,-- author of "Playbook to a Murder," and  CrimeOnline reporter Ellen Killoran.

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