(KTEN) — A Grayson County man and three others have been arrested and charged with the unlawful disposal of an animal carcass.

Last month, on December 1, Stillwater, Oklahoma, police responded to reports of a dead longhorn bull in front of the Farmhouse fraternity at Oklahoma State University.

According to the OSU animal disease and diagnostic laboratory, the necropsy found "the animal was suffering from a natural disease process" and died before being placed in the yard.

Twenty-year-old Bennett Fady of Collinsville, Texas, along with Luke Ackerley, Andrew King and Brody Shelby — all age 19 — were booked into the Payne County Jail.

(L-R) Brody Shelby, Luke Ackerley, Andrew King and Bennett Fady were arrested for unlawful disposal of an animal carcass.

What many believed was a message being sent ahead of the Big 12 championship football game between OSU and Texas turned out to be a prank between two OSU fraternities.

Stillwater investigators heard rumors of an ongoing prank war between Farmhouse and another fraternity, which led to an investigation of Alpha Gamma Rho.

A search warrant of the Alpha Gamma Rho fraternity revealed that members had information about the case.