Wapello County Sheriff Chief Deputy Don Phillips said since his arrest on Tuesday, Donald Gridley has since bonded out of jail. He also pleaded not guilty. His preliminary hearing is set for July 22.
This isn't Gridley's first involuntary manslaughter charge. He was found guilty in 1992 of involuntary manslaughter and operating while intoxicated during a June 1991 incident in Jefferson County.
He also has several other intoxication and assault charges on his record from Wapello and Jefferson counties.