Millar used to do cannonballs off the grandparents ' roof into their swimming pool .
He has known former Marlin Kevin Millar since he was five , when Thompson 's grandparents served as Millar 's host family at Lamar University .
Millar used to do cannonballs off the grandparents ' roof into their swimming pool .
He has known former Marlin Kevin Millar since he was five , when Thompson 's grandparents served as Millar 's host family at Lamar University .