A 23-year-old man thought it would be funny to put a dead rattlesnake on a northern Arizona police memorial, but authorities were not amused.

Nathan Cody Cumiford, of Cottonwood, was arrested Monday and faces a misdemeanor littering charge. He was released on his own recognizance.

Cottonwood police say surveillance video shows Cumiford placing the reptile on a statue honoring fallen officers.

Sgt. Tod Moore says when Cumiford was asked why he did it, he laughed and said it was meant to be a joke.

Cottonwood is about 100 miles north of Phoenix. Cumiford told police he killed the snake somewhere between the town and Tuzigoot National Monument, which is a few more miles north.

A phone listing for Cumiford was out of service and he couldn't be reached for comment Thursday through a Facebook page.