Blake, 72, testified Monday in the Burbank, Calif., wrongful death suit filed against him by Bakley's children that he spoke to undocumented workers in Vitello's restaurant on May 4, 2001 -- at the same time his wife was being shot to death outside, the Los Angeles Times reported.
Sources from the Los Angeles Police Department, who asked not to be identified, told the newspaper Blake had never before mentioned such witnesses.
Blake claims he had gone back into the restaurant to retrieve a gun he left behind and when he returned to his car, his wife was dead.
His criminal trial ended in acquittal earlier this year in Van Nuys, Calif.
As to the conversation "Baretta" star claims he had, a police investigator told the Times: "Unless Blake is going to produce those witnesses, it didn't happen as far as we know."