SAN ANTONIO -- Guadalupe County authorities arrested a group of teens who they said tortured a dog to death in an abandonded home on Tuesday.

Police said the three boys ages 12, 14, and 16 walked into Stephanie Tavere's yard and stole her beloved dog Tobey.

Officers said the teens took the dog to an abandoned house and repeatedly threw the dog out of a second story window.

After its legs were broken, the boys hung the dog in a tree and proceeded to beat it like a pinata, authorities said.

Police said the teens ended up decapitating the dog.

A neighbor across the street saw the suspicious activity and called police.

The teens are being held on charges of animal cruelty resulting in death.

If convicted, they could be put in jail until they turn 19.

Nan Udell, an assistant co-attorney, said local law enforcement are very disturbed by the animal cruelty case.

She declined to show photos to KSAT 12 News that she said are too gruesome to fathom.

Udell said what is also disturbing is that the boys have shown no remorse for what they did.

"We're very concerned about that," Udell said. "They have been asked to have psychological testing so we can see if this is a pattern or a fluke. We don't know right now."