Forensic psychologist talks about Baby Gabriel case

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PHOENIX -- It's a case that has captured national attention -- the search for Baby Gabriel. The Tempe baby's mother, Elizabeth Johnson, is in jail on $1.1 million bond. She's facing a string of felony charges. The search for her 8-month-old baby has taken the FBI through three states. Forensic psychologist Erin Nelson gives us some insight into the investigation.