Fleck responds to Kill: 'I'm really sorry that he feels that way'
Fleck said Kill's comments saddened his entire family.
Jerry Kill
Players rally to support Fleck after Kill's public criticism
Carter Coughlin got the support rolling with a tweet praising Fleck.
Jerry Kill slams PJ Fleck in viral radio interview
Kill resigned in 2015 and Fleck was hired following the 2016 season.