Years of speculation about Warby's fate came to an end in 2002, when his remains were found with his aircraft, buried about deep in a field near the Bavarian village of Egling an der Paar, west of Munich. According to witnesses, the aircraft fell there on 12 April 1944, around 11:45. One of the propellers had bullet holes in it, which suggests that Warburton had been shot down. Parts of the wreck can be seen today in the Malta Aviation Museum. Only a few pieces of bone and the odd part of flying clothing were found. As Warburton was flying a USAAF plane with USAAF markings, he was thought to be an American. Most of Warburton's body was removed from the P-38. Rumours persisted locally that the remains were buried in a grave at St Johannes Baptist Church in Kaufering, which already contained seven airmen from an RAF Halifax shot down the previous year. After the war, they were subsequently reburied at Durnbach.