Pentagon's top investigator will lead inquiry into accident By Rupert Cornwell in Washington 03 February 2003 NASA turned yesterday to a retired four-star admiral who led the inquiry into the October 2000 terrorist attack on the destroyer USS Cole at Aden to head an independent commis-sion examining the Columbia space shuttle disaster. Harold Gehman, with 35 years of active duty in the navy, is regarded as one of the Pentagon's wisest and most experienced investigators. He has a career of high military appointments behind him – the most recent as Nato's supreme allied commander for the Atlantic, in charge of...