David Burrowes, the MP for Gary McKinnon's constituency of Enfield Southgate, has said the Home Secretary Theresa May will have "blood on her hands" if she decides to approve Gary's extradition to the US.
Mr Burrowes told Daybreak there is "compelling medical evidence that he would take his own life" if the extradition goes ahead. He also confirmed reports that he will resign if this happens.
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.