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True Crime: What Made Her Snap? Insta-Perfect Mom Kills Her 2 Adult Children In Apparent Murder-Suicide

It's the murder-suicide mystery that's shocked the nation: a renowned physician who often posted globe-trotting photos on social media, shot and killed her two adult children and then turned the gun on herself.

Today, Dr. Oz is asking the question: what made this Insta-mom snap?  We investigate the theories circulating online and the clues she may have left in the images she shared with the world.  And, Dr. Oz speaks to a close friend of one of the victims.

Plus, in 2001, Kathleen Peterson was found dead at the bottom of a staircase in her home and her husband, charged with murder. The case continues to make headlines, especially after Michael Peterson's release from prison in 2011.  Eighteen years after the death of his wife, Michael Peterson sits down with Dr. Oz to speak out about why he is innocent.

Watch THE DR. OZ SHOW, weekdays at 4 p.m. on CBS 62.

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