Having been raised in Chicago and seen him play and seeing him on TV a lot after he retired, he was quite the character.
On the field, he'd make the hardest tackles you'll ever see. Then he'd step on the guy's throat as he got up. Mean SOB.
Off the field, he was a sweetheart, and very funny.
Making it to 80 is remarkable for an ex football player. Many live only into their 50s.
One of the toughest things about getting older is seeing famous people you grew up with pass away.
RIP Butkis!