John Mayer first encountered grief when his older brother Stephen suddenly died at age 29 in 2007. Nine years later, John's second daughter, River, died 90 minutes after her birth. John talks about how he keeps Stephen and River present in his daily life and the ways he and his family reached out to their community for support. John also describes how his older daughter, who was 2 when River died, is making sense of her sister's death.