Hennepin Co. attorney explains dropped charges for trooper Ryan Londregan in Ricky Cobb II killing CBS MinnesotaGov. Walz said he planned to remove attorney Moriarty from state trooper murder prosecution Star TribuneMurder charges dropped against Minnesota officer Ryan Londregan in death of Ricky Cobb II ABC NewsProsecutors to dismiss charges against Minnesota trooper who shot motorist Ricky Cobb The Associated PressCharges dropped against state trooper Ryan Londregan in the shooting death of Ricky Cobb II MPR News