They called 911 — but cops and prosecutors decided they were lying
ProPublica is a Pulitzer Prize-winning investigative newsroom. Register for The Big Story newsletter to get stories like this one in your inbox Tracy Harpster, a deputy cops chief from rural Dayton, Ohio, was searching for appreciation. He had a company to promote: a wonder approach to identify when 911 callers are really guilty of the criminal activities they are reporting. "I understand what a guilty daddy, mom or sweetheart seem like," he when stated. Harpster informs authorities and district attorneys around the nation that they can do the very same. Such linguistic detection is possible, he declares, if you understand how to evaluate callers' speech patterns-- their intonation, their stops briefly, their word option, even their grammar. Removed of its context, a lost word as harmless as "hi" or "please" or "someone" can expose a killer on the phone. So far, scientists who have actually attempted to substantiate Harpster's cl...