delaware joseph robinetett robinette was an iraq war veteran, awarded the barry bonds star. his greatest priority, his wife and two children, natalie and hunter. for the bidens, this is not the first time tragedy has struck. in 1972, beau was a little boy when he was injured in a car accident that killed his sister and mother. his father, joe biden, had just been elected to the u.s. senate and was famously sworn in at beau s bedside. a heavy topic that beau talked about while introducing his father at the 2008 democratic national convention. one of my earliest memories was being in that hospital. my dad always at our side. we, my brother and i, not the senate, were all that he care good. reporter: condolences are pouring in for a young man whose future seemed as bright as his father s. and biden was widely expected to run for the governor of delaware