Hennepin County attorney Moriarty drops murder charges against state trooper in shooting of Ricky Cobb II Star TribuneCharges dropped against state trooper Ryan Londregan in the shooting death of Ricky Cobb II MPR NewsProsecutors to dismiss charges against Minnesota trooper who shot motorist Ricky Cobb Yahoo! VoicesHennepin County Attorney Mary Moriarty announces dismissal of case against Trooper Ryan Londregan KSTPMurder charges dropped against Minnesota state trooper Ryan Londregan in killing of Ricky Cobb II CBS News