In a new statement, Diane Keaton’s family is revealing the 79-year-old legendary actor died from pneumonia. NBC’s Stephanie Gosk reports and medical contributor Dr. Natalie Azar joins TODAY to explain what makes pneumonia such a dangerous illness. In a new statement, Diane Keaton’s family is revealing the 79-year-old legendary actor died from pneumonia. NBC’s Stephanie Gosk reports and medical contributor Dr. Natalie Azar joins TODAY to explain what makes pneumonia such a dangerous illness.
