We investigate the horrific deaths that shocked the nation. What drove a renowned physician, who often posted globe-trotting photos with her children on social media, to shoot them and then turn the gun on herself? Plus, in 2001, Kathleen Peterson was found dead at the bottom of a staircase in her home and her husband was charged with murder. Today, after being released from prison, her husband Michael Peterson speaks out about why he is innocent.

Want to know how to look marvelous without splurging so much? Dr. Oz invites three beauty experts to share the smartest ways to save money while looking fabulous starting from your hair and makeup tools to the beauty products you use.