You can start here: Use the search function of these forums -- at the top of each page, slightly under and to the left of the photos -- to look for posts by
outdoortexan. (Be sure to "search in all open forums" to maximize your results.} Use the little icons above each of his posts to send him an e-mail or private message, or click on his name to go to his profile and get his e-mail address.
He's a true anti-chaw crusader and has a website --
the Outdoor Texan -- where he goes into graphic detail (including photos) about his experience with cancer caused by his use of chewing tobacco. He also speaks to groups about the issue.
He'd be a great starting point for ideas to help your friend. (And you're a great friend for caring so much!)