OAKLAND -- A veteran Oakland police officer has been charged with committing perjury and bribery during a 2016 murder trial, forcing prosecutors to review the 125 homicide cases he was involved as an investigator. "And because of his actions, my office now has to review at least 125 murder cases that Detective Tran investigated to see if we have wrongfully convicted anyone else," Price said Tuesday. The witness refused Tran's requests for "help" in identifying a suspect in exchange for help in her son's criminal case