Famed Grateful Dead founder Bob Weir has died. He was 78. "It is with profound sadness that we share the passing of Bobby Weir. He transitioned peacefully, surrounded by loved ones, after courageously beating cancer as only Bobby could," a statement shared via Instagram on Saturday, January 10, read. "Unfortunately, he succumbed to underlying lung issues." The statement, signed by Weir's daughter, Chloe Weir, continued. "For over sixty years, Bobby took to the road. A guitarist, vocalist, storyteller, and founding member of the Grateful Dead.