RAPID CITY, S.D. – A Porcupine man who had pleaded guilty to involuntary manslaughter was sentenced to 30 months in federal prison this week.
Cassian Richards, 20, shot and killed 19-year-old Creighton Yankton in February near Porcupine.
According to the factual basis statement signed by Richards, he carried a loaded semi-automatic pistol into a car and “carelessly and recklessly jostled the firearm” while getting into the car, causing it to fire and hit Yankton who died within minutes.
Richards will also have three years of supervised release.