The mother of British computer hacker Gary McKinnon has welcomed Home Secretary Theresa May’s decision to block his extradition to the US.
Janis Sharp said she was "overwhelmed" after an "emotional rollercoaster" and she said Mrs May had been "incredibly brave" to "stand up" to the US.
Mr McKinnon, 46, admits accessing US government computers but claims he was looking for evidence of UFOs.
The home secretary told MPs McKinnon was "seriously ill".
A spokeswoman for the US State Department, Victoria Nuland, said: "The United States is disappointed by the decision to deny Gary McKinnon’s extradition to face long overdue justice in the United States. We are examining the details of the decision."
Mr McKinnon, from Wood Green, north London, who has been diagnosed with Asperger’s syndrome, a form of autism, faced 60 years in jail if convicted in the US.
But Mrs May said his was a "difficult and exceptional case" and there was a real risk of him attempting suicide if he was sent to the US.
Ms Sharp said her son could not speak when he first heard of the decision but then he cried and hugged her.
She said: "He felt like he was a dead person. He had no job, he didn’t go on holiday... he felt worthless."
His solicitor, Karen Todner, said it was "a great day for British justice" and his barrister, Edward Fitzgerald QC, said Mrs May had been "brave".
Mr McKinnon’s bail conditions, imposed since 2005, have now been lifted, meaning he can once again use a computer and also access the internet.
BBC legal correspondent Clive Coleman said it was a dramatic decision - the first time a home secretary had stepped in to block an extradition under the current treaty with the US.
Shami Chakrabarti, director of civil rights group Liberty, congratulated Mrs May and said: "It is a great day for compassion and common sense."
Mark Lever, chief executive of the National Autistic Society, said: "We’ve started to raise the profile of the vulnerability of people with autism in the criminal justice system."
Mr McKinnon’s MP, Conservative David Burrowes, said: "It’s a life that’s been given back to Gary in a long dark tunnel that is 10 years. This must never happen again."
But Labour former home secretary Alan Johnson criticised the decision and claimed Mrs May had made a decision which was "in her own party’s best interests but it’s not in the best interests of this country".
He said: "Gary McKinnon is accused of very serious offences. The US was perfectly within its rights and it was extremely reasonable of them to seek his extradition."
American extradition expert Douglas McNabb said the US Attorney’s Office would be furious.
Mr McNabb said he suspected it would ask Interpol to issue a red notice - making other nations aware there was an outstanding arrest warrant for Mr McKinnon in the US - which would mean he could be arrested if he left the UK.
"Too many white people" in Pittsburgh says government official 2015-07-31 2:14
According to Abby Wilson, the deputy director of the Department of Health’s Bureau of Public Policy and Community Relations in Allegheny County, there are too many White people in Pittsburgh.
She left Pittsburgh to work in South Africa and then study in the Netherlands, but now that she’s back, she wants to change it.
“My two main gripes (about Pittsburgh) are: too ...
Judge blocks group from releasing more Planned Parenthood videos 2015-07-31 2:35
The pro-life group behind a series of undercover Planned Parenthood videos accused the bioservice firm StemExpress late Wednesday of trying to â€ścover up this illegal baby parts tradeâ€ť after the company obtained a court order blocking the release of footage.
The Los Angeles Superior Court issued a temporary injunction Tuesday stopping the Center for Medical Progress from releasing any video showing ...
US Fish & Wildlife Service Investigating Killing Of Cecil The Lion 2015-07-31 2:18
The U.S. Fish and Wildlife Service announced that the agency is investigating the killing of Cecil the Lion, saying it will â€śgo where facts lead.â€ť
The agency made the announcement via Twitter Thursday.
Also Thursday, the Eden Prairie Police Department said that, while they will be stepping up neighborhood monitoring, they will not be providing personal protection for the dentist who killed ...
Dispute over bounced check caused brutal Hollywood shotgun killing: Cops 2015-07-31 2:40
Carrie Melvin, an aspiring Hollywood production assistant, was strolling with her boyfriend not far from Sunset Boulevard on the evening of July 5 when someone murdered her with a shotgun. Police have now arrested a suspect, Ezeoma Obioha, 31, and say his motivation was likely a dispute over a bounced check worth just a few hundred dollars.
A Los Angeles ...
California Drought Could Wipe Cities Off Map If Their Water Runs Out 2015-07-31 2:28
The epicenter of Californiaâ€™s drought crisis is in the Central Valley, where there are growing fears the drought could wipe entire towns off of the map.
Wells are going dry, jobs are harder to come by and families are already moving, either to different states or even Mexico in search of work.
Before visiting Tulare County, a place where wells have gone ...