South Dakota Attorney General Jason Ravnsborg has concluded that a Rapid City police officer was justified in firing his weapon and using lethal force during an incident last month.  On the evening of December 29^th, the Rapid City Police Department responded to a call of shots fired. Responding officers encountered an armed individual who opened fire at law enforcement while converging on the responding officers.  The situation escalated and a responding officer fired his patrol rifle at 29-year old Patrick Alden of Rapid City who died at the scene.