LONDON , England ( CNN ) -- Gary McKinnon , the hacker who broke into Pentagon and NASA computers , was at risk of suicide Friday after losing an effort to fight extradition to the United States , his attorney said . Gary McKinnon 's mother , Janis Sharp , fears for her son 's life after the Supreme Court decision . `` This is the wholesale destruction and bullying of a small individual by the United States and now our own government , '' attorney Karen Todner said in a statement . McKinnon 's mother Janis Sharp described her son as `` suicidal . '' The British government did not respond . McKinnon , a British citizen , has admitted breaking the law and intentionally gaining unauthorized access to U.S. government computers . The U.S. government says McKinnon carried out the biggest military computer hacking of all time , accessing 97 computers from his home in London for a year starting in March 2001 , and costing the government about $ 1 million . U.S. authorities want him extradited to face trial in the United States . McKinnon , currently free on bail in England , has said he was simply doing research to find out whether the U.S. government was covering up the existence of UFOs . McKinnon bases his case partly on the fact that he has Asperger 's syndrome , a type of autism . He had hoped to bring his case before the nation 's newly-formed Supreme Court . But the court rejected the request Friday . McKinnon has one effort left -- to appeal to the home secretary . `` The effect on Gary of these proceedings and impending extradition has been , and is , devastating , '' Todner 's statement said . `` He is a highly vulnerable man in a very fragile state and this is a huge blow to him and his family . '' McKinnon is thought to have acted alone , with no known connection to any terrorist organization , said Paul McNulty , the former U.S. attorney for the Eastern District of Virginia . A U.S. federal grand jury indicted McKinnon on seven counts of computer fraud and related activity . If convicted , he would face a maximum of 10 years in prison on each count and a $ 250,000 fine . McKinnon has said it was easy for him to access the secret files .
Gary McKinnon 's mother , Janis Sharp , described her son as `` suicidal '' Appeal to have case heard at Britain 's new Supreme Court rejected . Briton accused of carrying out biggest ever U.S. military computer hacking . Score: 7