Joe Biden: 'I'll kill your son'

“I remember coming back from mass on Sunday,” Biden began. “Always the big treat was, we’d stop at the donut shop…We’d get donuts, and my dad would wait in the car. As I was coming out, my sister [Valerie] tugged on me and said, ‘that’s the boy who kicked me off my bicycle.’”

“So I went home—we only lived about a quarter mile away—and I got on my bicycle and rode back, and he was in the donut shop.”

Biden remembered the boy was in a physically vulnerable position: “leaning down on one of those slanted counters.”