Fergus Walsh | 20:30 UK time, Monday, 19 July 2010 The case of Tony Nicklinson will re-open the debate on assisted dying and so-called "mercy killing". He has locked-in syndrome, following a stroke. Unable to talk, he communicates by blinking or nodding his head. He also has a specially adapted computer with a push-button control. Mr Nicklinson wants his wife to be allowed to inject him with a lethal drugs dose without the fear of her being prosecuted for murder or manslaughter. As the law stands, that seems a vain hope because actively taking a life, even with consent, has always been treated as a crime, leading to a jury trial.