To Deputy Sheriff Michael Knights, the dispatcher’s call sounded like something out of a slasher movie: a report of a man standing on a street corner threatening passing motorists with a chain saw. "You know how in the ‘Texas Chainsaw Massacre’ the guy raised his chain saw up and revved it? That’s what he was doing," Knights said Wednesday. "Alcohol was involved." Maine State Police Trooper Thomas Fiske said they took the chain saw away from Dube at gunpoint. Knights confiscated it after seeing that Dube was threatening motorists ... Fiske said he was mystified as to why Dube was...