Joe Biden's son dies of cancer, aged 46

Beau Biden, the eldest son of US Vice President Joe Biden and the former attorney general of Delaware, has died of brain cancer, his family announced Saturday. He was 46. Beau Biden, who had served in Iraq as a lawyer with the Delaware Army National Guard, had been undergoing treatment at the Walter Reed Medical Center just outside Washington. Beau Biden was a popular Democrat in his East Coast state of Delaware and had once been expected to follow his father onto the national political stage.