107K views · 1.8K reactions | Documentary filmmaker Ken Burns reveals how his own history has been shaped by the loss of his mother Lyla when Ken was 11 years old. Go to CNN.com/allthereis to join the All There Is community, where you can share your story and watch the full conversation. | CNN | Facebook

Facing concerns about his own family history of Alzheimer's, CNN chief medical correspondent Dr. Sanjay Gupta visits preventive neurologist Dr. Richard Isaacson to have his own risk for dementia assessed in the CNN documentary "The Last Alzheimer's Patient." Watch the full documentary on CNN's "The Whole Story" premiering on May 19 at 8p ET/PT and streaming on MAX on June 18. | CNN

Videos verified by CNN show the initial moments of the deadly fire at Le Constellation bar in Crans-Montana, Switzerland. About 40 people were killed and more than 100 people were injured in the blaze on New Year's Day. Follow live updates here: https://cnn.it/4qaMidK | CNN