Vice President Biden Mourns Loss of Son

Vice President Joe Biden hugs a mourner as they stand near Beau Biden's casket during a viewing, at Legislative Hall in Dover, Delaware, June 4, 2015.

Vice President Joe Biden rests his hand on the casket of his son, former Delaware Attorney General Beau Biden during a visitation, at Legislative Hall in Dover, Delaware, June 4, 2015.

U.S. Vice President Joe Biden rests his head in his hand during a viewing for his son, former Delaware Attorney General Beau Biden, at Legislative Hall in Dover, Delaware, June 4, 2015.

Beau Biden talks with President Barack Obama on the West Front Lawn of the Capitol in Washington after his father, Vice President Joe Biden (in background) took his ceremonial oath during the 57th Presidential Inauguration, Jan. 21, 2013.

U.S. Vice President Joe Biden walks with his sons Beau (left) and Hunter (2nd right) and his wife Jill down Pennsylvania Avenue during the inaugural parade in Washington, January 20, 2009. 

Sana'ar Sanya Duwatsu Akan Tufafi