Dayton, Ohio (AP) -- Authorities in Dayton, Ohio, say they suspect a month-old infant who died last year had been put in a microwave oven.
The head of the county coroner's office says it has evidence to back up that conclusion, and he says it's also is supported by police findings.
The baby girl's mother, China Arnold, was arrested Monday and is charged with aggravated murder. In court Tuesday, a judge set bond at one million dollars. Arnold's attorney says his client plans to plead not guilty.
The coroner's office says the baby showed no external burn marks, but an autopsy found she suffered internal heat injuries.
Police say a microwave has been taken as evidence.
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