Dog Attacks, Kills Baby at Grandma's Home Step-grandma was watching 7-month-old victim By Newser Editors and Wire Services Posted Jul 21, 2014 12:01 PM CDT 85 comments Comments Stock image (Shutterstock) (Newser) – Ohio police say a dog has attacked and killed a 7-month-old boy. in Dayton The baby's step-grandmother was watching the infant for the day when her dog attacked and killed him yesterday afternoon, reports the Dayton Daily News. A Montgomery County coroner's investigator says the baby, whose name hasn't been released, is from another state. An autopsy is planned for today, and an animal control officer has removed the dog. Montgomery County records show an American Staffordshire terrier is registered at the address where the baby was killed, and a June 3 police report shows the same dog attacked and injured another dog before it got away.