From Huffington Post:
Beau Biden, the son of Vice President Joe Biden, has died from brain cancer, the White House announced Saturday evening. He was 46.
Biden served as Delaware's attorney general for eight years between 2007 to 2015. In 2010, he suffered a mild stroke but recovered and went back to work.
"Michelle and I are grieving tonight," President Obama said in a statement.
From the Biden Family:
It is with broken hearts that Hallie, Hunter, Ashley, Jill and I announce the passing of our husband, brother and son, Beau, after he battled brain cancer with the same integrity, courage and strength he demonstrated every day of his life.
The entire Biden family is saddened beyond words. We know that Beau’s spirit will live on in all of us—especially through his brave wife, Hallie, and two remarkable children, Natalie and Hunter.
Beau's life was defined by service to others. As a young lawyer, he worked to establish the rule of law in war-torn Kosovo. A major in the Delaware National Guard, he was an Iraq War veteran and was awarded the Bronze Star. As Delaware’s Attorney General, he fought for the powerless and made it his mission to protect children from abuse.
More than his professional accomplishments, Beau measured himself as a husband, father, son and brother. His absolute honor made him a role model for our family. Beau embodied my father's saying that a parent knows success when his child turns out better than he did.
In the words of the Biden family: Beau Biden was, quite simply, the finest man any of us have ever known.