Powell was VP of Operations at Hospitality Investors, Inc. according to his profile page. Flix Brewhouse and Homefield Grill operate under the Hospitality Investors umbrella.
Powell was profiled in an Eater.com interview last June.
A live thread about Powell is currently up at RateBeer where he was a valued member (in addition to being a BeerAdvocate member).
Cause of death was still in the process of being determined as of Tuesday night though ‘natural causes’ was cited by one family member.