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John Minchillo, Associated Press
Ohio State Attorney General Mike DeWine, right, speaks to the media alongside Pike County Sheriff Charles Reader during a news conference, Wednesday, April 27, 2016, in Waverly, Ohio. A coroner's report released Tuesday showed new details of vicious violence in the shooting deaths of eight members of a rural southern Ohio family, finding most victims were shot three to nine times each and some of them were bruised. Meanwhile, the hunt for whoever is responsible continued to expand, with more than 200 law enforcement officials involved.

PIKETON, Ohio — Ohio's attorney general is calling the slayings of eight people from one family in a rural part of the state a "cold-blooded, calculated massacre."

Mike DeWine and other officials visited the four crime scenes again Wednesday. Seven adults and a 16-year-old boy were found dead Friday at four properties in the hills near Piketon. Investigators have interviewed more than 50 people but haven't made arrests or confirmed a motive for the slayings.

DeWine says authorities don't want to reveal information or theories that could inform the killer or killers.

A coroner says seven victims were shot multiple times, and one had nine gunshot wounds. Some victims also had bruising.

DeWine calls the multiple shootings another indication they were the work of a "ruthless" individual or group who planned them.