Wow, this has gone unsolved this long?!?
His name is Keith Guenther. He is the CEO / Founder of Res.Net, a real estate software company.
https://www.res.net/executive-management
Ran into him today at the Whole Foods in Brea. Told him he needs to sign back with the Halos... his response was "I wish man, I wish." Not too promising.