Los Angeles police Chief Charlie Beck said Wednesday he was "very concerned" by an officer's fatal shooting of an unarmed homeless man in Venice Beach, Calif., saying he had not yet seen any evidence that would justify the shooting, reports the Los Angeles Times .
Beck said he had reviewed a security tape showing the incident, but did not detail what it showed. He cautioned that the investigation was still in its early stages, but said that so far, "I don't see the supporting evidence that I normally would."