Man Talks About Viral Video Of Eighty Five-Year-Old Grandpa Punching Speed Bag

This man talked about the "behind the scenes" of a viral video wherein an eighty-five-year-old grandpa punched a speed bag. This man, the eighty-five-year-old man's son, talked about the technique used by himself and his father, such as the downward elbow strike and the use of other martial arts techniques. He also shared anecdotes of his childhood and the times when his father taught him and his brothers these techniques.