Dog Attack: Vicious Dog Fatally Shot After Biting Man, Sheriff's Deputy

GREEN, OH (WOIO) - A vicious dog is fatally shot after an attack on a Summit County man and Sheriff's deputy.
  It happened in the 2800 block of Aldis Road just before 4PM on Thursday.
  Officers arrived on scene to find the victim inside a car while the dog - believed to be a pitbull mix - lurked outside.
  The dog became violent toward the deputies and bit one of the men on the hand. Some of the deputy's puncture wounds went clear through his hand.
  The dog was then killed by one of the deputies after a failed Taser attempt to subdue the agitated animal.
  Both victims were taken to the hospital for treatment. Both are expected to be fine.
  Officials are still waiting to establish who owns the dog. Charges are pending
I sure hope they find and prosecute the owner of this dog.  Why was it loose?  What made the dog a dangerous animal?  Abuse?  It's too bad the animal was the one that had to pay he ultimate price from bad circumstances.