JFK’s grandson Jack Schlossberg, 32, looks heartbroken as he attends sister Tatiana’s

An environmental journalist and author, Tatiana wrote candidly about learning she had acute myeloid leukemia after routine blood tests following the birth of her second child.

In her essays, she described the shock of being gravely ill while feeling healthy, and her wish to shield her family—especially her mother—from further pain.

After her passing, Jack honored her on Instagram with poetry, family photos, and excerpts from her book Inconspicuous Consumption, celebrating a legacy rooted in purpose, compassion, and environmental responsibility.