The mayor once told us to thank ”dear God“ for Los Angeles Police Chief Bernard Parks; as I recall, however, he forgot at the time to tell us why.But most of us realize that it isn‘t God we really have to thank for Bernie Parks. It’s Dick Riordan himself.So it was certainly appropriate for the mayor momentarily to recall this fact himself last week and, in a forthright moment, to tell us that he, Mayor Dick Riordan, was ”responsible and accountable“ for the entire shambling mess in the LAPD that could cost the city more than $100 million in settlements. Although it took a tough question from the floor of a town-hall lunch fest to make him admit it.