1933 Imperial Airways Diksmuide crash

On 28 March 1933, an Armstrong Whitworth Argosy II passenger aircraft, named ''City of Liverpool'' and operated by British airline Imperial Airways, crashed near Diksmuide, Belgium, after suffering an onboard fire; all fifteen people aboard were killed, making it the deadliest accident in the history of British civil aviation to that time. It has been suggested that this was the first airliner ever lost to sabotage, and in the immediate aftermath, suspicion centred on one passenger, Albert Voss, who seemingly jumped from the aircraft before it crashed. Provided by Wikipedia