Wow, looks like someone has a real hate-on for the prof.
The wording of the article doesn't make a clear connection between the prof and prostitution activities. IMO, the article is doing it's best to be vague (to avoid litigation).
..."The e-mails, which began last week, have included semi-nude photos of a woman and links to escort service websites, e-mail correspondence, and a transcript of an interview purportedly between a university researcher and a sex worker marked "Internal Office Use Only" and "Private & Confidential."...