While there has been no official statement from the park or his family yet, sources have reported that Six Flags Great America Park President Charles "Hank" Salemi passed away suddenly yesterday. Hank had served as Park President since 2006. Prior to being Park President, Hank previously served as Six Flags Corporate Vice President of Marketing 2000-2006 and Director of Marketing at Six Flags Great America 1997-2000.
Condolences to Hank's family and coworkers during this difficult time.
EDIT:
IAAPA has posted about Hank's passing
https://www.iaapa.org/news/iaapa-news-d ... W1sfCCxRik