TOWN OF WALWORTH, Wis. -

Walworth County Sheriff's Office documents detailing the investigation of a pit bull attack that killed a young boy in March are revealing new details about the incident.

Fourteen-month-old Daxton Borchardt was at his baby sitter's home in the Town of Walworth March 6 when the two were attacked by the woman's pit bulls. The boy was pronounced dead a few hours later at a hospital.

The baby sitter, Susan Iwicki, told deputies that she and the toddler were taking the two pit bulls outside when they started to nip at her.

When Iwicki batted the dogs away and yelled at them to stop, Daxton started to cry and the dogs suddenly viciously attacked, according to the documents.

Iwicki was able to get the boy into the house, but his clothes had been ripped off him and her coat was ripped by the pit bulls, according to the report.

The report said that sheriff's deputies who arrived to help the boy described the dogs' aggressive behavior like a pack of wolves attacking their prey. The first sheriff's deputy at the scene found the boy had a severe head wound as well as deep cuts and bite marks all over his body, according to the report.

The two pit bulls were euthanized.

The Walworth County Sheriff's Office had said no criminal charges are expected to be filed in the mauling.