Twenty years ago, San Francisco enacted a 'sanctuary city' ordinance requiring that local agencies not consider immigration status when dealing with young offenders. But the June 2008 shooting deaths of Anthony Bologna, 48, and his sons, Matthew, 16, and Michael, 20, created a national uproar, with critics charging that San Francisco was protecting criminals to the detriment of law-abiding citizens. Edwin Ramos, an undocumented Salvadoran who was 21 at the time of the shootings, was charged in the crimes. He had been arrested on felony charges as a youth but never handed over to immigration officials. Shortly after the Bolognas' deaths, Mayor Gavin Newsom changed the policy to require that all juvenile illegal immigrants charged with felonies be referred to federal officials, said spokesman Nathan Ballard. On Tuesday, 'the board did the wrong thing,' Ballard said. 'The mayor supports our sanctuary city policy, but it was never intended to be used as a shield for criminal behavior.' The new policy will go back before the Board of Supervisors on Oct. 27 for a second reading. If it hits Newsom's desk in its current form, Ballard said, the mayor will veto it. But Supervisor David Campos, who sponsored the change in policy, said the board has the votes to override Newsom's threatened veto. 'I think it's a proud day for San Francisco,' Campos said. Tuesday's vote 'sends the message that we in San Francisco still believe in the Constitution and the basic principle of due process, that in this country you're innocent until proven guilty.' 