Boston GlobeRiverside officer's gun may have killed himLos Angeles TimesWitnesses saw the policeman fighting in a park with the driver of a stolen big rig before shots were fired. The weapon has not been recovered. A potential suspect has been arrested. By Phil Willon, Los Angeles Times The Riverside police officer killed ...BREAKING NEWS: Suspect Arrested in Riverside Officer MurderChicago TribuneRiverside police arrest man in officer's slayingSan Francisco ChronicleArrest in case of slain Calif.