Police still have no suspects, motive
                                
                                
                                    (Newser) -
                                    Colorado is reeling in the  fatal shooting  of corrections head Tom Clements, and police are scrambling to come up with either suspect or motive. Fearing additional attacks, the state is ramping up security measures for Gov. John Hickenlooper, lawmakers, and other officials, the  Denver Post  reports. Police aren't sure...