Teen Matthew Bernard kills his mother, sister, nephew, and the family dog. The question remains as to why. Police are looking to data from a recovered cell phone for an explanation. Joining Nancy Grace today: Ken Belkin, NY criminal defense attorney; John Cardillo, Former NYPD; Dr. Caryn Stark, Psychologist; Dr. Michelle Dupree, Medical Examiner; reporter Levi Page Investigative Reporter Crime Online.com.
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