Gypsy Rose Blanchard, 26, is serving a 10-year sentence for second-degree murder for her role in the June 2015 stabbing death of her mother, 48-year-old Dee Dee Blanchard. According to Gypsy’s father, Rod, the events that culminated in his ex-wife’s murder began when Gypsy was still an infant.

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“Gypsy was born perfectly healthy. Everything seemed fine. About three months old. Dee Dee told me she started having seizures and sleep apnea,” says Rod, who had separated from Dee Dee before their daughter was born.

“Dee Dee told me that Gypsy had problems with her salivary glands. One of her seizures made her paralyzed from midthigh, down. There was so much when people would ask me oh what Gypsy has wrong with her. I’m like, the list is shorter of what she doesn’t have,” adds Gypsy’s stepmother, Kristy Blanchard.

Following her death, investigators, aided by experts uncovered a remarkable case of Munchausen syndrome by proxy in Dee Dee Blanchard. She had reportedly fabricated multiple chronic illnesses and disabilities and forced her daughter to take needless medications and undergo numerous unnecessary surgeries all her life.

Watch the video above to learn how Dee Dee’s reported systematic abuse of her daughter went unchecked for nearly a quarter-century. Then tune in Thursday for part one of a two-part daytime exclusive as Dr. Phil sits down with Gypsy Rose Blanchard from inside the Missouri prison where she now resides.

Check here to find out where you can watch.

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‘She Just Had Enough And Snapped,’ Says Dad Of Gypsy Rose Blanchard