He died of cyanide poisoning 16 days before his 42nd birthday on the 7th of June 1954.
Queen Elizabeth 11granted him a posthumous pardon in 2013
what he is famous for.
Alan Matheson Turing OBE FRS was a British pioneering computer scientist, mathematician, logician, cryptanalyst and theoretical biologist. He was highly influential in the development of computer science, providing a formalisation of the concepts of algorithm and computation with the Turing machine, which can be considered a model of a general purpose computer. Turing is widely considered to be the father of theoretical computer science and artificial intelligence.