Lawrence Patrick pleads insanity over Alexander Glassford bus death 7 January 2014 Last updated at 16:06 A man who is accused of murdering a grandfather on a bus in Glasgow is claiming he was insane at the time. Lawrence Patrick, 46, is charged with fatally stabbing Alexander Glassford, 59, on board a First bus near Yoker Ferry Road on 12 August last year. At the High Court in Glasgow, his QC Brian McConnachie entered a not guilty plea and lodged a special defence of insanity. Judge Lord Turnbull set a trial due to begin in March this year. Patrick is currently detained at the State Hospital in Carstairs.