Photo by: Uncredited

Peter Root and Mary Thompson, both 34, were killed in Thailand on Wednesday, Feb. 13, 2013, in a road accident during their round-the-world cycling odyssey. The couple, from Guernsey in the Channel Islands, left Britain in July 2011 and had cycled through Europe, the Middle East, Central Asia and China — a journey chronicled on the website Two on Four Wheels. (AP Photo/Courtesy of Jerry Root)