Youngstown police say no charges will be filed in connection with the investigation into the death of three-day-old boy who died after he was bitten by a family dog.

Police made the decision after learning that the Mahoning County Coroner intends to rule the death as accidental.

Mahoning County Forensic Pathologist Dr. Joseph Ohr told 21 News on Monday that Aiden Grim died as a result of a dog bite.

Dr. Ohr says he wants to make it clear that this was not a mauling or an attack. He says there isn't any evidence that the child was even shaken by the dog.

The investigation found several puncture wounds on the infant's head that pierced the skull, and causing the child's death.

Dr. Ohr says the dog is a male Labrador and Shepard mix that has never attacked anyone and has no history of aggression.

The brother of the infant's mom is the owner of the dog and would like to have it returned.  The dog is under mandatory quarantine at the Mahoning County Dog Pound.

Attempting to put the incident into prespective, Dr. Ohr pointed out that there are approximately 4.5 million dog bites each year in the United States. Of that number, Dr. Ohr says that approximately 800,000 require emergency medical attention. He says that between 20 and 30 deaths are reported each year due to dog bites.

The mother of the infant, 21 year old Kristy Grim told Youngstown police officers that threats have been called in to her home on the 3500 block of Valerie Drive from people since news broke about the death of her son.

Around 2:30 p.m. on Monday, Kristy Grim told officers that she received a voice mail from a phone number that was hard to understand. She called the number and the person on the phone threatened to end her life.

Grim believes the voice on the phone was of a former friend who blamed her for the death of her child.