The US has said they are "disappointed" after the Home Secretary Theresa May blocked their request on human rights grounds to extradite computer hacker Gary McKinnon so he can stand trial. She described it as a "difficult and exceptional case".
Gary McKinnon was born in Glasgow in February 1966.
He started developing computer software on an Atari 400 console at the age of 14.
He suffers from a form of autism called Asperger's sydrome, which helps him to 'get inside the mind of' computers, but also means he is very naive according to his family.
He started hacking after seeing the 1983 film WarGames, in which a teenager brings the world to the brink of war by hacking into the Pentagon computer network.
Between 2001 and 2002, McKinnon is accused of hacking into 97 American military computers at the Pentagon and NASA.
He has never denied accessing US military computers but claims he was looking for evidence of UFOs, which he is passionately interested in.
The Home Secretary has decided to block a request to extradite computer hacker Gary McKinnon to the US on the grounds of his human rights.
Computer hacker Gary McKinnon is due to find out whether the Home Secretary will end his 10-year battle against extradition to the US.