CEDAR RAPIDS — Greg Graham, who became chief of the Cedar Rapids Police Department two weeks before the historic 2008 flood and stayed on the job four more years, died Sunday when the small plane he was flying crashed in Florida, according to news reports.“Chief Graham had an immediate impact on the Cedar Rapids Police Department and Cedar Rapids community, helping guide rescue and response efforts to the Flood of 2008 when floodwaters overwhelmed the community from June 11-13” that year, the department posted Sunday on Facebook.