For 25 years William Noonan and John F. Kennedy, Jr. were best friends. Sharing an adolescence in Hyannisport, Massachusetts, the two frequented beach bonfires and the Monday-night yacht-club dances, took road trips, shared albums, sneaked cigarettes on the widow’s walk of John’s house, and scored beer together. And as they grew older, John and Billy never lost the connection they forged in the Kennedy compound as two young boys who had both tragically lost their fathers.

A humble and touching memoir, Forever Young uncovers the private John F. Kennedy, Jr from the matchless vantage point of a longtime childhood friend. Forever Young ispacked with never revealed details of John and Carolyn Bessette’s courtship and wedding, the launch of George, John’s unusually close relationship with his mother Jackie, and the heartbreaking aftermath of the plane crash off Martha’s Vineyard that killed John, Carolyn, and Carolyn’s sister. Noonan also shares the more ribald episodes, including John’s many famous conquests, skirmishes with paparazzi, and his stint as People’s “Sexiest Man Alive.” The definitive story of the son of Camelot, Forever Young is a touching and revelatory tribute to a friendship between two men—and a life cut devastatingly short.