SACRAMENTO, Calif. (AP) — Democrats in the California state Senate are using their majority to advance a group of seven bills that would further tighten California's strict gun laws. At a hearing in Sacramento, Los Angeles Mayor Antonio Villaraigosa told the Senate Public Safety Committee, "We simply can't wait until the next tragedy before taking action." The Assembly Public Safety Committee advanced a bill Tuesday that would make it a crime to negligently store a loaded firearm or leave it in a place where a child is likely to access it. The same committee also rejected a bill that would have made it easier to get a concealed weapons permit and another allowing the open carry of firearms. Another proposal being considered would prohibit the sale of any semi-automatic rifle that accepts detachable ammunition magazines.