In Waco, Texas, Michael Terron Daniel was arrested on Monday and charged with cruelty to a non-livestock animal in a bizarre incident on June 14.
Daniel, who claimed to be on the synthetic drug K-2, chased a neighbor while barking and growling like a dog.
After the neighbor ran away, Daniel beat and strangled the neighbor's medium-sized black dog and then “began to bite into the dog, ripping pieces of flesh away," Waco police Sgt. W. Patrick Swanton told KWTX-TV.
The dog died at the scene.
Officers found Daniel sitting on the porch with blood on his hands, clothing and face.
Daniel, who evidently assaulted several people at the home, told them he “was on a bad trip" from ingesting K-2.
K-2 is a form of synthetic marijuana, but contains none of the chemicals found in cannabis.
Daniel was “initially incoherent and unresponsive,” Sgt. Swanton said, and was taken to Providence Health Center by ambulance.