A Florida college professor who blogged that the Sandy Hook school massacre may have been staged — or didn't happen at all — is an "embarrassment" who should be fired from the public university where he teaches, said the top official in the grief-stricken Connecticut town where 20 children and six adults were gunned down last month.

James Tracy, an associate professor of media history at Florida Atlantic University, made the bizarre claims in a series of posts on his personal blog, memoryholeblog.com. Although the school distanced itself from Tracy, who has also doubted the official versions of the JFK assassination, 9/11 and even the more recent movie massacre in Aurora, Colo.,