IRON RIDGE, Wis. -- As two families cope after a fatal dog attack in Dodge County, the sheriff said criminal charges seem unlikely in the case.

Taylor Becker, 4, of Hustisford, was mauled to death Wednesday afternoon by a family friend's dog.

She's described as charming, beautiful and energetic, WISC-TV reported. She was visiting a family friend's house with her parents and older brother when the attack occurred.

Dodge County Sheriff Todd Nehls said the dog, a boxer, had no history of violence.

"We have no information at this point to lead us to believe that there has been any incident at this home or any incident with this dog of aggression or biting anybody," Nehls said.

Taylor was playing Wednesday in a yard near Iron Ridge where the 5-year-old dog, named Rocky, was chained before it apparently freed itself and attacked. The sheriff said it's unknown why the dog attacked.

The dog's owners, the Beauprey family, said that in the three to four months they've had the dog, there have been no problems or signs of aggression.

Both families are speaking and holding onto their friendship -- Taylor's father included, WISC-TV reported.

"He expressed that he holds no ill-will towards this man -- that they are very close families, close friends -- and he wishes that relationship to continue," Nehls said.

The boxer is currently in custody at the Dodge County Humane Society. The sheriff said it's likely, at the owner's request, that the dog will be euthanized.

"We're in no hurry," Nehls said. "I think eventually euthanasia is going to take place; the dog will be put down. But we want to wait the 10 days, get some tests from the dog to see if the dog did have some rabies so that we can share that with the family. It may be a concern with the other five puppies on the scene."

The boxer is the father of those puppies, but the puppies were not outside at the time of the incident.

While the sheriff said criminal charges are unlikely at this point, the matter remains under investigation as the Dodge County Sheriff's department researches the dog's history and where it came from before it came to the Beauprey family.

Nehls said his department will hold a "critical incident stress debriefing" for responders to help them deal with the emotional impact.