Sixth man pleads guilty in bull rider heroin death

Cheyenne, WY – Another man has pleaded guilty to felony drug charges in the heroin overdose deaths last year of a professional bull rider and two others in Cheyenne.

Thirty-four-year-old Christopher Charles Tyson of Cheyenne pleaded guilty on Thursday to distributing the heroin and cocaine that killed bull rider Bryan Guthrie last December.

Tyson also pleaded guilty to conspiring with others to move the drugs that killed Guthrie and two others who died earlier last year.

Tyson faces 20 years in prison when sentenced by U.S. District Judge Alan B. Johnson in November.

Tyson is the sixth man to plead guilty to drug charges in the case. Two others entered pleas Tuesday. Federal officials are awaiting extradition of a seventh man from Canada.