On what was his 16th anniversary in the office of District Attorney, Dan Conley surprised many by announcing he would not run for the office again. Simply put, the former prosecutor turned City Councilor turned DA, said he believed it was time to let others have a chance to run the county-wide office – an office that covers Boston, Chelsea, Revere and Winthrop. “After today’s announcement by DA Conley, I have been asked if I would be interested in running for Suffolk County District Attorney to succeed him,” said Flaherty in a statement.