Baltrusis, Sam: - Sam Baltrusis, author of Ghosts of Boston and Ghosts of Cambridge, freelances for various publications and is the former managing editor of Scout Magazine in Somerville and Cambridge. He has been featured as Bostons paranormal expert on the Biography Channels Haunted Encounters and Paranormal States Ryan Buells Paranormal Insider Radio. Baltrusis moonlights as a tour guide and launched the successful ghost tour Cambridge Haunts, and produced a new tour in Salem in 2013.