it is not clear -- always your rejal enter. 18, 00 clients are sempbed at h location alone. >> california has 31 regional centers. police are alert for any suspicious time. >> we are monitoring what's going on. if he finds out it's iegs lated or something larger, well, we'll go into an island state of patrol while this is going on. >> a lawmaker say the shooting paragraph has to be done. >>> statement saying fwun violence is a crisis of epidemic proportions. enough is enough. >> and she is congress has a moral responsibility. and congress will not bug her lease. >> now, over to you. police response to active shooting has e sl. >> abc 7 news reporter vick lee is live at the county hall of justice with more on what the response really is now, ben? >> well, dan, the biggest change happened six years ago after the mastz shooting. but law enforcement inen sills there's only one way. stop an active shooter. >> this is a call that they're prepared to deem. >> it's like sergeant yik watching for a unble. >> while most responders are looking for the law enforcement angen sills respond in deferent