 That happened. A Great Falls man who admitted to assaulting another man with a baseball bat on the Blackfeet Indian Reservation and illegally possessing ammunition was sentenced to back on June 26th in federal court to three years in prison to be followed by three years of supervised release. Now, 56-year-old Paul Joseph Valenzuela pled guilty back in January to assault resulting in serious bodily injury and to prohibited person in possession of ammunition.