Just happened upon this tonight. It's about 14 minutes or so. If you've got the time, it's worth a look. The guy was a pretty amazing person.
I lost my dad to dementia about 4 1/2 years ago, so it hit close to home ...
https://youtu.be/-wZsyEbZVLU
For some reason, it wouldn't let me post the actual video here -- just the link -- so if interested, you'll have to watch on YouTube. I believe Pihos is the only former Hoosier in the NFL Hall of Fame.