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9 March 2015, 15:00
A father-of-one has admitted killing a pensioner with a single punch in a crowded bar in East Kilbride.
Richard Brady, 33, hit 68-year-old Alistair Balfour on the mouth as he stood with his hands in his pocket.
The force of the blow caused Mr Balfour to fall backwards and smash his head off the wooden floor of the pub.
As Mr Balfour fell Brady turned and walked out the pub.
Advocate depute Angela Gray, prosecuting, told the High Court in Glasgow that at the time Brady was on bail from Paisley Sheriff Court for allegedly smoking and being disruptive on a plane.
He also has convictions for assault and assault to injury.
The court heard that Mr Balfour a self-employed television and video engineer, who was married for 47 years, had an extra-marital affair with Brady's mother.
This on-off relationship lasted for around three years before it finished on Christmas Day 2012. Mrs Brady and Mr Balfour parted on bad terms.
As a result of this Brady and Mr Balfour fell out. They reported each other to the police for vandalism and breach of the peace, but no action was taken because of insufficient evidence.
In court, Brady admitted killing Mr Balfour by punching him once on the head and causing him to hit his head on the floor at the Montgomerie Arms in East Kilbride last June.
He will be sentenced next month.