India, Dec. 31 -- Jack Schlossberg and his family were hit by heartbreaking news on Tuesday. The New York congressional candidate's sister, Tatiana, passed away after a battle with cancer. The American environmental journalist and the granddaughter of the late president John F Kennedy was 35.

In a statement posted on the JFK Library Foundation's Instagram account, the family wrote: "Our beautiful Tatiana passed away this morning. She will always be in our hearts."

Tatiana was the daughter of designer Edwin Schlossberg and diplomat Caroline Kennedy. She is survived by her husband, George Moran, a physician, and their two children.

Now, Jack Schlossberg's old tribute to Tatiana has resurfaced. Last November, on the anniversary of her gra...