A 12-year-old California boy says he killed his dog because he wanted to see the terrier mix die.

The Salinas Californian reports police officers found the 12-pound dog hanging by its collar on a bedroom door handle.

Investigators say the boy told officers he was mad at the dog and he wanted to see it die.

Dispatchers got a 911 emergency call Friday afternoon from a female caller saying the boy was hurting the dog. People in the boy’s apartment refused to open the door when Salinas police arrived, so officers obtained a pass key.

The boy was arrested and taken to Monterey County Juvenile Hall for investigation of felony animal cruelty.