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Dr. Howard Cooper, Lake County's coroner, said that such behavior coming from a smaller dog breed was unexpected, but sometimes people tend to forget how powerful animals can be. He added that the bulldog has a very powerful jaw.
According to Cooper, the bulldog recently adopted by Urso had formerly been trained to fight. He said the attack had been vicious based on the number of bites and scratches on the victim's torso and extremities.
The deadly bulldog, as well as another French bulldog and a border collie, were removed from Uros's residence and are in the custody of Lake County Animal Care and Control.
An investigation is ongoing, and officials say it was unclear if the other two dogs were involved in the attack. According to Chief Lee, there were apparent signs of a struggle inside the home, and that blood was also found on the other French bulldog.