On their first day back in the Capitol since the killing Friday night of six college students near UC Santa Barbara, Democrats in the California Legislature on Tuesday said the state should do more to keep mentally ill people from obtaining guns.

Democratic Assembly members Das Williams of Santa Barbara and Nancy Skinner of Berkeley announced they will introduce a bill that would allow concerned family members or friends to notify authorities when a loved one is at risk of committing violence. That would allow law enforcement to investigate the person and potentially prevent him from buying firearms.